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List of Ben 10 aliens

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In the Ben 10 universe, the Omnitrix and its succeeding models possess the DNA of various alien races that the titular protagonist uses. Thus this not only lists the alien forms that Ben Tennyson assumes, but also the sapian races that the Omnitrix obtained a genetic blueprint from.

Aliens introduced in Ben 10

Heatblast

Voiced by:

Heatblast is a Pyronite (pyro- meaning fire and -nite as in ignite) from the star Pyros. Heatblast appears to be a magma-based lifeform whose body is composed of a bright inner magma body covered by dark red or brown rocks.

Heatblast is Ben's first transformation, accidentally activated in the pilot episode of the original series, "And Then There Were 10" when Ben was trying to remove the Omnitrix immediately after it first attached to him. During the original series, when Ben caught a cold, it effected Heatblast by giving him cryokinetic powers instead of the normal pyrokinesis. This was returned to normal after his recovery; however, later in Ben 10 Omniverse, he gains access to the reverse side of the Omnitrix and named the alien Iceblast

Ben later regained access to Heatblast in Ben 10: Ultimate Alien "Ben 10,000 returns", with his 11-year old self's Heatblast form making an appearance in "The Forge of Creation". Heatblast reappears through the Ultimatrix, the first for 16-year old Ben, in "Viktor: The Spoils" to defeat King Xarion in Dr. Viktor's body. He now has a darker skin tone and his eyes are not connected to the fire on his head, similar to Alan Albright. Heatblast retains this design in Ben 10: Omniverse.

In Omniverse, for both Bens, he looks similar to his appearance in Ultimate Alien. His eyes are once again connected to the fire on his head, his shoulder plates are slightly tilted up, and the 16-year-old Heatblast is taller and much more muscular. The Omnitrix symbol is on his chest.

Wildmutt

Voiced by:

  • Dee Bradley Baker - Ben 10, Ben 10: Ultimate Alien, and Ben 10: Omniverse (vocal effects)

Wildmutt is a Vulpimancer (a play on vulpine, which means fox and "mancer", which means beast) from the garbage planet Vulpin, and appears as a large dog-like creature with no visible eyes or tail. Though without eyes, Vulpimancers use the gills on their neck for thermography echolocation and use heightened senses of sound and smell. However, a loud sound or a horrific smell can overwhelm them. According to various profiles on Wildmutt, the porcupine-like quills on his back supplement his radar sight and can also serve as weapons, either protecting him while he's rolling, or as projectiles fired off at will. This ability is unique to adult Vulpimancers, and as Ben's version is only ten years old, these quills have not fully developed.

Ben first transformed into Wildmutt in "And Then There Were 10" after his experiment with the Omnitrix, and is thus his first intentional transformation. In Ben 10: Ultimate Alien, Wildmutt's design was basically unchanged, except that his lips were orange instead of black and he has Ultimatrix symbol on his chest. Wildmutt made a few brief appearances in the third series, most of them were off-screen and not by Ben; his official debut was in "Prisoner #775 is Missing", where he was used to track the invisible alien prisoner.

In Ben 10: Omniverse, Wildmutt's design is mostly unchanged, and his Omnitrix symbol is on a green collar with white stripes.

Ultimate Wildmutt

Ultimate Wildmutt is bigger than Wildmutt, red, has a blade on his tail and a frill on his back. He first appeared in "Prisoner Number 775 Is Missing," where he battled prisoner 775. He is capable of some speech, and may possess supernatural powers.

Diamondhead

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Diamondhead is a Petrosapien (Petro is a Greek term referring to rocks, sapien referring to an intelligent being; Petrosapien would mean "intelligent rock") from the planet Petropia (a combination of Petro and topos, forming a word similar to "rock place"). The planet was destroyed by Vilgax with a help of Tetrax, who unknowingly helped him create the weapon that destroyed it. This was originally the case, but in "The Secret of Chromastone", it was revealed that the object used to destroy Petropia was a crystal that must be used by Sugilite (the Crystalsapien whose DNA was used for the sample of Chromastone) to recreate the planet. Petropia was reborn in this episode, and all Petrosapiens now resemble Ben's Diamondhead form.

Diamondhead's body is composed of an extremely durable organic crystal, which resembles Taedenite, making him nearly invulnerable. Diamondhead can control his crystal physiology at will, allowing him to create crude crystal weapons from any part of his body on demand or fire crystal shards from his hands. This same ability also allows him to regenerate to an extent, such as re-growing lost limbs, in addition to growing crystal from himself, Diamondhead can grow crystal over the ground; and as his crystal body acts as a prism, refracting light beams. The one drawback to Diamondhead's crystal form is the crystal itself, which can shatter if exposed to sufficiently strong sonic vibrations, while Petrosapiens can regenerate limbs, there is a limit to how much damage they can recover from.

Ben first transformed into Diamondhead to destroy Vilgax's giant robot sent to take the Omnitrix in "And Then There Were 10". In the planning stages, Diamondhead was set up to be one of the aliens Ben would have discovered later on, while Cannonbolt would have been one of the original ten.[citation needed]

In Ben 10: Alien Force, Diamondhead was regained after Chromastone was temporarily destroyed by Vilgax. He no longer wears the original costume, instead, has a body composed of material similar to that of Chromastone, and the Omnitrix/Ultimatrix symbol moves to his chest from his left-chest. His eyes are now green.

In Ben 10: Omniverse, 16 year old Diamondhead has a black shirt with a green stripe in the middle. He also has black pants. The Omnitrix symbol is on his belt. 11 year old Diamondhead is the sme from OS.Diamondhead is a silicon-based life form that is about seven feet in height.

XLR8

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XLR8 (pronounced "accelerate") is a Kineceleran (a portmanteau of the words "kinetic" and "accelerate") from the planet Kinet (the first part of kinetic, which is movement energy).

Resembling a semi-armored velociraptor, XLR8 has wheel-shaped feet, scissor-like claws and a helmet with a windshield. XLR8 has the ability to manipulate friction to instantly reach speeds of 500  allowing him to climb up walls and run on water with relative ease. Using his speed, XLR8 can perform a number of unique feats, like creating tornadoes through centrifugal force, either through running in a small circle or spinning; and can deliver speed-enhanced attacks in fast succession. Amazing reflexes accompany this speed, allowing XLR8 to quickly dodge attacks. Ben first transformed into XLR8 when he decided to play around with his newfound power, also used him to get revenge on Cash and JT whom he fought with earlier in the episode "And Then There Were 10".

He reappears in Ben 10: Ultimate Alien, with no difference from the original series. XLR8 was first used in the Ultimatrix in the crossover special "Ben 10/Generator Rex: Heroes United" to grab Dr. Holiday from Alpha Nanite.

In Omniverse, XLR8 has a green chest instead of white. 11-year-old Ben as XLR8 in Omniverse looks exactly same as in the original series except that the Omnitrix symbol is green, he has three blue stripes on his tail, he is shorter, and his whole neck is white.

Grey Matter

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Grey Matter is a Galvan (a play of galvanization), a gray-skinned, frog-like alien that is 5 inches tall. The Galvan race are a highly intelligent race that have made technologies in the series, including the Omnitrix, the Null Void Projector, Galvanic Mechamorphs (Upgrade's species), and their planet, Galvan Mark II, after their original homeworld Galvan Prime was destroyed by the Highbreed in the "War of the Worlds" 2-parter.

Ben usually dislikes becoming Grey Matter due his small size, and he is mostly accessed by accident, especially when Ben wants a large, powerful alien. However, as Grey Matter, Ben gains a Galvan's calculative and technical intellect, being able to outwit larger enemies, create almost anything from spare parts, deduce the function of any device at a glance, and analytically help in difficult situations. Grey Matter's size allows him to squeeze into small spaces, climb walls due to tiny suction cups on his skin, has sharp teeth and his slimy skin that make him difficult to grab.

Ben first transformed into Grey Matter to search for a rare gold card of the Sumo Slammer in cereal boxes of a supermarket in "Washington B.C.". Grey Matter returned in Ben 10: Omniverse, where his white jumpsuit, is now green with a belt and a pair of gloves; and the stripe on his head is now gone. Unlike most of the other aliens that had their Omnitrix's symbol moved, Grey Matter's remained on his back. He made a brief debut in "Have I Got a Deal for You" as one of three straight accidental transformations.

In Omniverse, 11 year old Grey Matter looks exactly the same as the original, but his collar is now black. His skin tone is also different. 16 year old Grey Matter looks like 11 year old Grey Matter with an exception of having a green jumpsuit, and his voice is noticeably deeper.Grey matter is a grey-skinned frog-like bipedal alien only four inches tall with large green eyes with little minus sign shaped pupils. Grey matter is the same specise as Azmuth, who created the omnitrix and claimed to be the smartest in 3, maybe 5 galaxys.

Ultimate Grey Matter

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Ultimate Grey Matter is the evolved form of Grey Matter set to debut in The Ultimate Heist via Albedo (due to Ben no longer having the Ultimatrix).

Fourarms

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Fourarms (a play on forearm) is a Tetramand (tetra meaning four in Greek, mand being arms in Latin) from the desert planet Khoros, the place epitomizes a dystopia, resulting in the strength-oriented species. Tetramands are 12 foot tall powerhouses with armored skin and extremely dense musculature, making them unmatched in pure physical strength with the females stronger than the males. However, the muscle mass and heavy skin makes Tetramands relatively slow and unable to use things normally used by smaller life forms. According to Azmuth's father in "Destroy All Aliens," The pyramids of Egypt were created by Tetramands.

Fourarms is one of Ben's favorite alien forms, utilizing Fourarms's strength to create shockwaves simply by pounding the ground or clapping all four of his hands together, dubbed the "Big Smack", and his leg strength allows him to cross entire city blocks in a single jump. When under the effects of an illness, his strength and stamina are somewhat lessened and he develops pungent hives in his armpits. With Fourarms, Ben has a tendency to make punning with arms and has habit of saying he can do something "with three hands tied behind my back". Ben first transformed into Four Arms to fight the giant woolly mammoth that Dr. Animo had reanimated in "Washington B.C.".

Fourarms reappeared in Ben 10: Ultimate Alien, wearing a much different costume and having an appearance reminiscent of a gladiator. He now has more authentic clothes of his original species, with golden bracelets, a ponytail, two gold sashes that cross over his trunk with the Ultimatrix symbol on the center of his chest, and green eyes instead of yellow. Fourarms is regained in "Video Games" in a fight with Ssserpent, and Ben was surprised because he did not know he was still there. Ben's 10-year-old version of Fourarms made an appearance in Ben 10: Ultimate Alien, in the episode "The Forge of Creation".

In Ben 10: Omniverse, 16 year old Fourarms' design resembles a muscle man at a circus with mustache and the Omnitrix's symbol located in his belt. 11 year old Fourarms' is the same as OS. It's revealed during Many Happy Returns that Tetramands are well known for making indestructible engine blocks. Kevin Levin states, this is the reason why his car is still able to function, despite withstanding all the punishment it had received throughout their adventures.Fourarms is a humanoid alien approximately twelve feet tall has well developed muscles two pairs of four fingered arms and red skin.

Stinkfly

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Stinkfly is a Lepidopterran from the swamp planet Lepidopterra (a play on lepidoptera, the scientific name for butterflies and moths). Combining elements of various insects and able to fly with high mobility and speed, Lepidopterrans have four eye stalks that give them a wide range of vision on all sides, and shoot a light blue beam. They also have mouths with pollen ducts that can excrete high-pressure foul smelling streams of liquids that vary from a flammable toxin to an immobilizing jelly. Younger members of the species emit a herbicide gas via flatulence. One weakness of a Lepidopterran losing their ability to fly when their wings get wet.

Ben first transformed into Stinkfly in "Washington B.C.", when he had to save Gwen after she fell from the Washington Monument, and defeat Dr. Animo. Since then, Stinkfly has been among Ben's most used alien forms in the original series. The 10-year-old Ben's Stinkfly made an appearance in the Ben 10: Ultimate Alien episode "The Forge of Creation". His eye color changed from orange to green, his hands are green instead of black, his teeth are white instead of green, his Omnitrix badge changed from white to green.

In Omniverse, while 11-year-old Ben's Stinkfly resembled the original series with his face and pupiled eyes green, the current version has larger wings with a darker green shirt. While the younger version of Stinkfly reappears in "A Jolt from the Past", the current version is reintroduced in "Of Predators and Prey : Part 1".Stinkfly has a bug/insect body and four insect like flat legs with two arms whose hands are human style ones with a black coloration similar to fingerless gloves and three clawed fingers.

Ripjaws

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Ripjaws is a Piscciss Volann (from piscēs, the Latin word for fish) of the artificial water planet Piscciss (a play on the constellation Pisces), a 98% water-based world with solid matter only at its core, and the gravity is controlled by an anti-gravity multiplier, which holds all water and the beings on the planet, but actually was a piece of the Map of Infinity, which Aggregor took and Goop's anti-gravity projector replaced. Piscciss Volanns are fish-like aliens that possess the traits of Earth's oceanic fish, with many variations but share a luminescent dangle, an ability to withstand a remarkable amount of pressure and swim at great speeds by combining their legs into a tail. Piscciss Volanns are also voracious eaters, able to unhinge their jaws to bite into much larger objects and rip through steel.

First transforming into Ripjaw in order to take the Krakken's eggs back from Jonah Melville in "The Krakken", Ben does not rely on using the form due a flaw of Piscciss Volanns needing to stay hydrated, drying quickly if out of the water for even a few minutes. In Ben 10: Ultimate Alien, having regained access to the form in "Perplexhahedron" to escape from a water trap, Ripjaw looks a bit catfish-like with Ultimatrix symbol moved in the center of his chest, larger claws, and the phosphorescent light on his head is smaller.

In Omniverse, 11 year old Ripjaw's design combines Original Series and Ultimate Alien appearance. His eyes remain like Ultimate Aliens, his eyebrows are gone, his teeth are now shown but are still human-like. His tail is bigger, he has black clothing around his shoulders, and arms. The Omnitrix symbol is on his chest. His 16 year old appearance is a mix of both versions and has a belt with the Omnitrix symbol on it. He has re-appeared in the episode "Gone Fishin'".Ripjaws shares a number of traits with earth aquatic life alligators eels anglerfish and sharks.

Upgrade

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Upgrade is a Galvanic Mechomorph (a portmanteau of mecho- meaning machine and -morph meaning shape) created by the Galvans, from Galvan Prime's moon, Galvan B. Originally an uninhabited planetoid, Galvan scientists tried to make the place hospitable for colonization by binding self-replicating nanotechnology into Galvan B's minerals. With a new sentient species born as an unexpected result; the Galvans abandoned the project and allow the first Galvanic Mechomorphs to flourish into a civilization.

Other than firing positronic plasma beams from its eye, a Galvanic Mechamorph's primary ability is to merge with technology, regardless of size, upgrading it far beyond its original design. While they can control machines in that fashion, Galvanic Mechomorphs are incapable of properly controlling sentient robots. Galvanic Mechomorphs are also vulnerable against electricity and any sort of metal corrosive can compromise their delicate internal workings.

First becoming Upgrade to stop some criminals who were robbing an ATM in "Permanent Retirement", Ben's voice remained the same though sounding more computerized. This is due to Galvanic Mechomorphs being unable to bond with living organisms, thus Ben's transformation into Upgrade is incomplete. But this fact can be bent as seen in the crossover special "Ben 10/Generator Rex: Heroes United", where Upgrade merged with Rex Salazar's Nanites to greatly enhance his ally's Nanite-based machines during their fight with Alpha-Omega. Compared to his look from the original series, Upgrade's appearance in Ben 10: Ultimate Alien had him with a black and green color scheme; he still has the green stripes on the black side, but now has black stripes in the green side.Upgrade has a black exterior with green stripes that resemble circuitry all over it. Upgrade will reappear in Omniverse.

Ghostfreak

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Ghostfreak is an Ectonurite (ecto- is a play on ectoplasm) from the planet home-world Anur Phaetos (phaetos is a playing on Phaëton). Horrific creatures with a single eye on an upside down skull, sharp claws, and a striped ghost tail, Ectonurites normally wear a protective skin that condenses their form to resemble ghosts, their single eyes moving along a black track on the skin. Ectonurites are able to phase through matter, possess people, turn invisible and fly. They are stronger in darkness and can be weakened in sunlight to the point of death by combustion if not wearing their second skin. As an Ectonurite's consciousness exist in even in the smallest strand of their DNA, Ghostfreak is essentially Zs'Skayr, an evil Extonurite who managed to have his genetic template added into the Omnitrix.

Ben first transformed into Ghostfreak to sneak out of his great aunt's house in "Permanent Retirement", admitting a sense of dread when he later uses Ghostfreak to defeat Zombozo. Eventually, his mind became more and more independent of Ben before Ghostfreak finally managed to force his way out of the Omnitrix in the events "Ghostfreaked Out", attempting to take over Ben's body in order to gain the Omnitrix for his own use. But even coercing the Circus Freak Trio to help him, Ghostfreak is destroyed when Ben exposes him to sunlight. However, as revealed in "The Return" and "Be Afraid of the Dark", Ghostfreak was revived by his former self's ally Dr. Vicktor to enact their plan to plunge the Earth into darkness. Though Ben manages to destroy Ghostfreak again, he manages to endure death once again by allowing himself to be scanned by the Omnitrix.

However, after being removed from the Codon Stream by the Galvans, Ghostfreak was placed in a prison before being found by Vilgax. After telling him of Primus so he can free him, Ghostfreak proceeds to conquer Vilgaxia and convert the citizens into Ectonurites. When Vilgax enlists the help of Ben to try to take his domain back, Ghostfreak is absorbed back into the Omnitrix where he takes over Ben's body and attempts to possess Vilgax. Luckily, with a combination of sunlight and Vilgax getting the upper hand, Ben regains control and reverts to his usual self. Since then, as shown in "The Ultimate Sacrifice" when Ben attempted to use Ghostfreak on Ultimate Humongosaur, the Zs'Skayr persona has stayed inactive. In Ben 10: Ultimate Alien, Ghostfreak's second skin looks different from the original series, having white skin, a bigger eye, and the Ultimatrix symbol moved to his chest from his left-chest.Ghostfreak is a ghost like alien with claw like hands. Ghostfreak is to reappear in Omniverse

Cannonbolt

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Cannonbolt (A play on cannonball) is an Arburian Pelarota (based on pelota, the Spanish word for ball and rota, a play on rotation) from the planet Arburia, which it was destroyed by "The Great One", one week prior to "The Big Tick". After this, the Arburian Pelarotas moved to Vulpin (Wildmutt's planet), then they mutated due the pollution and evolved to be able to live there, becoming a sub-species, called Vulpinic Tortugans ("tortuga" is the Spanish word for turtle).[1]

Cannonbolt is the first new alien to appear on the Omnitrix, and eventually replaces Ghostfreak in the original series opening. He was originally meant to be one of the original ten aliens, but was replaced by Diamondhead in production.

Cannonbolt is a hulking, broad-shouldered alien covered in natural armor plating, by curling up into a ball, much like an armadillo or pillbug, he can encase himself in his armor, becoming virtually invulnerable; also with his armor, he can then roll himself like a ball at high speeds. The drawback is that Cannonbolt quickly picks up inertia, which can make hitting more maneuverable targets difficult, as he cannot slow down quickly; in addition, Cannonbolt's speed and maneuverability is limited outside of his ball form, owing to his bulk and high center of gravity. The first time Ben used Cannonbolt was in "The Big Tick", but it was an accidental transformation, Ben intended to turn into XLR8 to go to a fast-food restaurant, the first intentional transformation was made in the same episode to try to stop "The Great One" for destroying Earth.

In Ben 10: Alien Force, Cannonbolt was regained by Azmuth after the Master Control of Omnitrix was unlocked in "War of the Worlds". He hadn't changed a lot, though he now had green eyes instead of yellow, no had longer a black stripe on his torso, and with normal canine teeth, his Omnitrix/Ultimatrix symbol also moved from his forehead to his chest.

In Omniverse, Cannonbolt looks like a mix between his UAF and OS look but shorter and 11 year old Ben has Cannonbolt's Omnitrix symbol on his forehead like in the original series.In the original series Cannonbolt was a hulking broad shouldered alien with natural yellow armor plating on his back shoulders and the backs of his arms.

Ultimate Cannonbolt

As Ultimate Cannonbolt, his body is light metallic cyan with a darker shade of gray on his now a metallic armor with cylindrical studs that turn into spikes when he goes into his ball form. In this state, he offers increased defense and more offensive capabilities therefore he can do more damage than normal, he also has increased speed, momentum and can bounce even higher. Ben first used Ultimate Cannonbolt in "Too Hot to Handle" to hold Kevin and P'andor, with his armor that is made of some material that can contain radiation, allowing Kevin to seal P'andor back in his suit.

Wildvine

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Wildvine is a Florauna (based on flora and fauna) from the planet Flors Verdance (a combination of flora and verdens, Latin word for green). Florauna are plant-based aliens with tentacle like roots for legs, and carnivorous plant-shaped flaps covering their heads. Among a Florauna's abilities are extending limbs, thorns, explosive seeds, merging with other plants and understanding other plant-based beings, and regeneration from near fatal attacks. However, like any plant, a Florauna requires sunlight and water to survive. But in Ben's case, first using the form by accident in "Camp Fear" to face the Mycelium, he seems to not require sunlight and water.

Wildvine returns in Ben 10: Omniverse, during a training session with Rook. His 16-year-old version looks exactly the same with the exception of having four plant legs and the omnitrix symbol being on a belt. 11 year old looks like OS Wildvine.Wildvine has vine like legs four long fingers on his hands and flytrap shaped flaps covering his head.

Blitzwolfer

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Blitzwolfer (Originally Called Benwolf) is a Loboan (based on lobo, the Spanish word for wolf) scanned from the Yenaldooshi in the titular episode; from the Anur Transyl's moon, Luna Lobo (literally translating from Spanish as "Wolf Moon"). "Blitz" is German for "lightning", making the name literally mean "lightning wolf".

Blitzwolfer seems to be based on the Werewolf, where Ben obtains this form after Yenaldooshi scratched the Omnitrix in the episode "Benwolf", causing its DNA to be added into Ben's selection of aliens. The result of Ben's battle leaves the Omnitrix half way between "Scan Mode" and "Active Mode"; causing him to transform over the course of several hours instead of instantly as he normally does. Also Benwolf is slightly different from Yenaldooshi, and his eyes are green instead of purple.

He possesses super-human strength and agility, and can send a green sonic howl by peeling back his lupine snout. Ben is said to be affected by many other normal attacks and could be blinded by ultraviolet light, although there is no evidence showing this in the episode. Although he has color-blind vision, he never had a problem with it; he also finds it hard to resist his predatory instincts.Blitzwolfer's appearance is based on a classic werewolf. Blitzwolfer is to reappear in Omniverse

Snare-oh

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Snare-oh (a play on Snare and pharaoh), originally credited as Benmummy in the original series, is a Thep Khufan (a play with Khufu) scanned from an unnamed Thep Khufan in "Under Wraps"; from the desert planet Anur Khufos. Thep Khufans are Mummy-like creatures made up of many bandages that are function as tentacles and can regenerate from any injury. However, the downside is a Thep Khufan is prone to getting wet or burned.

Snare-oh was seen only two times in the original series; Ben debuts him in "The Return" as an accidental transformation while fighting off the Yenaldooshi and getting used to his form's abilities. Ben quickly discovers how to stretch his bandages, but has not displayed knowledge of the advanced reshaping techniques yet. Then he was seen again in the non-canon episode "Ken 10", where Ben 10,000 helps his son Ken who got stuck when tried to escape from his room.

In Ben 10: Omniverse, Snare-oh is redesigned to have a new black head-dress with a golden crown; a collar/wrap-like garment over his shoulders and neck, and his Omnitrix symbol is on the waist of his tunic. He shortly debuted in the episode "The Frogs Of War: Part 1", while the Omnitrix was in Randomizer Mode.Snare-oh's eyes and the gaps between his bandages glow green.

Frankenstrike

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Frankenstrike is a Transylian (a play on Transylvania) originally credited as Benvicktor scanned from Dr. Viktor in "Be Afraid of the Dark"; from the planet Anur Transyl.

Frankenstrike seems to be based on the Frankenstein Monster having the ability to generate electricity and blast it at others, adhere himself to metal surfaces through electromagnetism; survive in a vacuum; he also possesses super-strength, agility and is invulnerable; Dr. Viktor displays other powers, such as being intelligent and is able to connect himself to other devices to power up. The credits of the original series gave the name "Benvicktor", even though Ben himself has yet to name it.

Frankenstrike, like Snare-oh and Blitzwolfer, looks slightly different from Dr. Viktor, with longer hair and a smaller left eye; also as the others, has green eyes instead of purple, and releases green electricity. Benvicktor was first used to fight Ghostfreak, the Thep Khufan and Dr. Viktor in "Be Afraid of the Dark". He will reappear in Omniverse.Frankenstrike has an appearance similar to the classic depiction of Victor Frankenstein's monster.

Upchuck

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Upchuck is a Gourmand (from gourmand) from the planet Peptos XI (based on Peptos, the Greek word for digested.). Divided into the dark-green-colored Merks and the light-green-colored Perks, Gourmands are small frog-like aliens with a very large appetite, their four strong and adhesive tongues stretching out to latch onto large objects and swallow whole. As Gourmand's mouths and various acid-filled stomachs stretch to facilitate the digestion, the latter converting the ingested matter into explosive balls of liquids that can be expelled at will with great accuracy. As a defense, having done so with their ten previous home worlds, Gourmands can devour their planet as a last resort when invaded and depart for a new planet to call home.

Upchuck was unlocked for Ben's use by Xylene, to destroy Vilgax's drone in "The Visitor". As Upchuck, it seems that Ben cannot easily digest human food due to their acids being unstable for a Gourmand to digest. In Ben 10: Alien Force and Ultimate Alien, Ben regained the form in the events of "War of the Worlds", Upchuck's appearance changed into a Merk-type Gourmand with the Omnitrix/Ultimatrix symbol moved to his chest from his left hand and his eyes were changed from white to green. In Omniverse, Upchuck's 11 year-old appearance remains the same but his eyes and symbol have changed from white to green. His 16 year-old appearance remains the same as his Alien Force and Ultimate Alien appearance as well yet can assume a Perk-type form. Perk Upchuck has green skin, six sprout like growths on the back of his head, a dark green patch of skin on his head, light green skin on his face and belly and crooked teeth.

Ditto

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Ditto is a Splixson (based on the word split) from the Earth-like planet Hathor ( play on half )

Ditto is a very cute and adorable humanoid child alien with the ability to clone himself limitlessly, but each clone operates independently, regardless of whether or not Ben wants them to, and is indistinguishable from the others, and somehow, he can breathe under the water. Though the clones are autonomous, they share a link with each other, with the pain of one being shared with all of the others, and the death of one clone will cause the death of the rest, which negates the usefulness of making large numbers of clones, explaining the reasons why Ben rarely creates many clones of Ditto in the limited times he has appeared. His child-size is also neither stronger nor faster than his size and build suggests. Ben activated Ditto accidentally in the episode "Divided We Stand", to fight against Dr. Animo's mutated seagull; his first intentional Ditto transformation was in the same episode to go goofing around on the beach.

In Omniverse, 11 year-old Ditto's head fins are white and the ones on the side are connected to his eyes. He also has two small spikes protruding from his cheeks. His fingers are now sharper and the green orbs on his shoulders are gone. He has bumps like the three on his waist on his shoulders and wrists. His neck is completely black. Ditto is about the height of an average human child.

Eye Guy

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Eye Guy is an Opticoid (a play on optical) from the planet Sightra (a play on sight).

Eye Guy is the first alien to have been unlocked off-screen, how he was obtained is never addressed. As his name says, Eye Guy's upper-body is covered in eyes, though he ironically has no eyes on his head, which consists of a mouth and a very large pair of bat-like ears. From these eyes, Eye Guy can fire numerous energy beams; the eyes can be merged to create different effects,like a freezing beam; and by merging every eye into the large eye, he can fire a stronger energy blast.

His only appearance in the original series itself was in "Ben 10 vs. the Negative 10: Part 2", where Ben was attempting to prevent the Negative 10 from stealing the Sub-Energy. He also was introduced in the first alternate opening of "Ben 10: Secret of the Omnitrix" version, in a fight with Doctor Animo.

In Omniverse, 11 year old Eye Guy is the same as 16-year-old Eye Guy who looks almost the same as the original series, with his central eye returning, but now the white circles on his pants have been replaced with green stripes and his belt is now green with a white stripe. He wears green cuffs and has less eyes covering his body although they are bigger. He has also gained eyes on his hands. He has a green belt where the Omnitrix symbol is located.

Way Big

Voiced by:

Way Big is a To'kustar (a play on tokusatsu given Way Big's resemblance to the characters from the Ultraman), created by unpredictable cosmic storms. He is 100 feet tall with the ability to move at fast speeds and create energy blasts, a To'kustar's only weak point is his fin, which momentarily paralyzes him. Gaining the ability to become Way Big in "Ben 10: Secret of the Omnitrix", after Azmuth decides to deactivate the "Self-destruct mode" of the Omnitrix, Ben uses his form's size to his advantage. Ben regains the form in the second season finale of Ben 10: Alien Force after Azmuth unlocks the Omnitrix Master Control in "War of the Worlds". His eyes are now green instead of yellow, the spikes on his shoulders are gone, his face is different and the fins on his hips are gone. Way Big has great strength as shown in "The ultimate sacrifice" when he easily defeated all 6 ultimates. In Ben10: Omniverse, Way Big has his new design attached to his original design; and also he now speaks with a Japanese accent.

Ultimate Way Big

Ultimate Way Big is 300 feet tall (3 times taller than Way Big), stronger, has a spike sticking up from both his cheeks and his body is blue. He was used only once to battle in the episode "Ultimate Enemy Part 2". He can launch cosmic discs from his hands.

Future Aliens

In the episodes "Ben 10,000" and "Ken 10", a future version of Ben from an alternate Crosstime utilizes three alien forms unused in the present day. Although the events of these episodes are arguably non-canon in the first series, these three aliens would appear in the Ben 10: Ultimate Alien opening sequence, suggesting that they, at least, are canon, but were not debuted in this series, like most of the other aliens of the original series.

Four other aliens were mentioned in "Ken 10", ranging from Atomix, Sandbox, Snakepit, and Shellhead; although they might not be real because this episode is non-canon, taking place in an alternate future.

Spitter

Voiced by:

Spitter is a Spheroid (a play on sphere, probably due to the shape of his head) from the rainy planet Scalpasc (A play on Scalp).

Spitter is a large, fish-like alien with stubby legs (similarly shaped like that of a rhinoceros' foot), and a tail. As his name says, he has the ability to inflate himself and spit out a pressurized concentrated blast of slime, that is very slippery, sometimes acidic, and is shown to be highly conductive; Spitter also has sharp teeth, that might be used as a weapon. Spitter is to appear in Omniverse.

Buzzshock

Voiced by:

Buzzshock is a Nosedeenian, formerly known as Megawhatt (A play on megawatt and "what") from the Nosedeen Quasar (a play on Noseden and Quasar). Megawhatts are battery-like energy beings that manipulate electricity, transmit themselves through any electrical source in a high speed; reproduce via Mitosis once amassing enough energy.

Although Ben has not revealed these powers himself, he does reveal that he has the ability to send green electrical shocks, unlike the regular Megawhatts, which shoot yellow; he is also slightly different from them, which are yellow while Buzzshock has green eyes and a white lightning stripe on his chest. Buzzshock was first used by Ben 10,000 in his fight with Doctor Animo. Buzzshock is to appear in Omniverse.

Articguana

Voiced by:

Articguana is a Polar Manzardill (An anagram of the words "man" and "lizard"), one of the many types of Manzardill, from the polar ice caps of X'Nelli. Articguana is a blue iguana-like alien that can breathe freezing vapor, using it to freeze anything around him as long as he is not out of breath.

Though two alternate future versions of himself used Artiguana, the first to freeze Vilgax into a river and suggested the name "Absolute Zero" while the other used his Ultimatrix to access Articguana's powers, Ben first canonically used Articguana in the Ben 10: Omniverse episode "Hot Stretch".

In Omniverse, Articguana has clothing which covers most of his body. His chest is covered by a white shell. His sleeves are still fully black, and he has four fins instead of three.The fins seem to be more pointed. The clothing goes all the way up to his head and his pant legs are all black. The black lines on his face do not go through his mouth anymore. The Omnitrix symbol is on his chest. The spikes on his face are now on his chin. His gills are no longer visible. 11 year old Ben's Articguana in Omniverse looks exactly the as 16 year old Ben's Articguana only without the white shell, his sleeves ending in white when it reaches his hand and his leg being white and ending in black when it reaches his foot. The Omnitrix symbol is on his left hand.

Aliens introduced in Ben 10: Alien Force

Swampfire

Voiced by:

Swampfire is a Methanosian from the planet Methanos (referring to methane).

Swampfire is another living plant alien with a fire-patterned head and root-like feet. He has superhuman strength, ability to control plant life through a type of flammable gas, and the ability to create fire from his hands; the fire is created by igniting methane naturally produced within his body, which causes him to have a bad odor. He can also produce seeds that quickly grow into vines that he can control. He has vast regenerative ability, allowing him to alter his own body, such as digging underground in vine form, growing his feet to root himself into the ground, heal his lost limbs or of other ones, this ability makes him almost indestructible. However, Swampfire is more vulnerable than Heatblast because he can be frozen for periods of time, unlike Heatblast, who is completely invulnerable to cold.

He appeared in pilot episode of Ben 10 Alien Force, in "Ben 10 Returns: Part 1" after the Omnitrix had recalibrated, to fight the DNAliens, Forever Knights and defeat Kevin.

In Ben 10: Omniverse, Swampfire's design hasn't changed at all except for a different-shaped head and the Omnitrix symbol moving from his chest to his waist.

Ultimate Swampfire

As Ultimate Swampfire, he is a tree-like version of himself with a Heatblast-like face and blue gooey shells containing an organic, blue-colored napalm kerosene gel-like solution, containing a highly flammable substance that is used to create blue flames, which are more powerful than the normal, and when he puts his hands together, he creates a huge fire blast; he can also shoot fire bombs. Ultimate Swampfire cannot regenerate himself, this limitation was offset by his body being made of petrified wood which is more resistant to damage. Ben used Ultimate Swampfire on the first time in the Ben 10: Alien Force's series finale "The Final Battle: Part 2", to fight Vilgax, and being the first ultimate form used by Ben.

Echo Echo

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Echo Echo is a Sonorosian (a play on sonic and sonar) from the planet Sonorosia (from the word sonoros in Galician, meaning sound).

Echo Echo is a small white silicon-based alien whose body is a living amplifier, has a headphones connected to square appendage resembling an MP3 player in his back with a port on it decorated with a binary digit situated like the number 10. He can scream at ultrasonic frequencies, capable of overloading machinery and stopping projectiles in mid-flight; he can also use echolocation; and channel vibrations to enhance his power and transmit sound waves through speakers. He also has the ability to duplicate himself, but unlike Ditto,the clones are not linked in any way and can revert even if all duplicates are not re-integrated, which splinters the original's personality.

The first time he appeared was to fight the Forever Knights' dragon robot in "Ben 10 Returns: Part 2".

In Ben 10: Omniverse, Echo Echo is fatter and shorter, with stubbier legs. The eyes appear puffier as well. His Omnitrix symbol is now on his forehead.

Ultimate Echo Echo

As Ultimate Echo Echo, he is a blue, taller, with longer arms, and is a more robotic version of himself whose mouth doesn't move when he talks, but can be opened. In this state, Ultimate Echo Echo is unlike his regular form, in that he cannot duplicate himself anymore (As confirmed on the Cosmic Destruction site), but this limitation is well matched with incredible new abilities. He can now shoot sonic screams and sonic waves from discs, which are situated on many parts of his body, that can be thrown and controlled. He also have the power to levitate on air, which makes him one of the most powerful ultimate forms. Ben used Ultimate Echo Echo for the first time to fight the Necrofriggian colonizers, and to help Gwen and Kevin with the traps of the temple in "Map of Infinity".

Humungousaur

Voiced by:

Humungousaur is a Vaxasaurian (vaxa is an Icelandic word which means grow and sauria being a clade of lizards) from the planet Terradino (terra dino means "terrible land" in Latin).

Humungousaur is a 12 feet tall humanoid dinosaur-like alien, and Ben's current favorite alien; he possesses great strength and a thick layer of skin that provides vast resistance to injury; he also has the power to increase his own body size and mass growing up to 60 feet in height. His strength increases as he grows, and his dinosaur features become more pronounced, growing Stegosaurus-like plates on his back, a crest from his forehead, and spikes on his tail; Humungousaur has also proven to be durable enough to survive in space for at least a few minutes.

Ben used him on the first time to fights a swarm of DNAliens and a Highbreed in "Ben 10 Returns: Part 2".

In Ben 10: Omniverse, Humungousaur wears black briefs and a green sash across his chest containing the Omnitrix symbol.

Ultimate Humungousaur

As Ultimate Humungousaur, he is a larger ankylosaurus-like creature who is 20 feet tall. Unlike his original form, Ultimate Humungousaur cannot grow at all. He is a green-skinned, armored version of himself with grey horns on his head, arms, chest and back; with a mace in his tail, and his back is covered by a large, spiked shell. His genetic DNA allows him to convert his hands into bio-Gatling guns that shoot kinetically unstable bone fragments as missiles as a result of millions of simulated battles over thousands of years. Ultimate Humungousaur was first used by Albedo in "The Final Battle: Part 1" to fight Ben as Humungousaur, being the first Ultimate Form used in the Ultimatrix. Ben first uses him in the Ben 10: Ultimate Alien episode "Too Hot to Handle" to fight P'andor and his minions (Surgeon, Hammer and Buzz). He is shown to be strong enough to trip Way Big in "The Ultimate Sacrifice".

Jetray

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force and Ben 10: Ultimate Alien (As Ben and Kevin in "Inspector 13")

Jetray is an Aerophibian (derived from aero for air and amphibian) from the planet Aeropela.

Jetray is a manta ray-like alien who has horns extending from the center of the eyes and two wings which are attached to his arms. He is capable of flying and swimming at high speeds, around 300 mph, as fast as XLR8 (or possibly faster), being able to reach significant fractions of light speed; he can shoot neuroshock blasts through his eyes and tail in the form of lasers or a massive explosion; also he doesn't need to breathe, enabling him to easily travel through water and space. Jetray first appears to chase Alan Albright in "Everybody Talks About the Weather". Ben used him as his mode of transportation, much like Stinkfly when he was younger; however, he elected to use other aliens that were more favorable than Jetray, or simply his own car. Jimmy Jones, the one who exposed Ben's identity to the world, mistook his name as "Jeffrey".

Big Chill

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Big Chill is a Necrofriggian (necro- meaning death, and -frigid meaning very cold) from the planet Kylmyys (the Finnish word for coldness). Moth-like in form, folding their wings to resemble hooded robed figures, Necrofriggians can become intangible and freeze an opponent in various ways, one of which utilizes intangibility to freeze anything that they pass through.[note 1]

While possessing superhuman strength and resistance to extreme temperatures, Necrofriggians are unable to use their intangibility against opponents with the same ability. Necrofriggians have an ability to asexually reproduce once every 80 years: building a large nest made of digested metal, where their eggs will hatch, then their offspring feed from metal and will first eat from the nest, before they instinctively will feed on solar plasma until they mature and go to their home.

Ben first became Big Chill in "Kevin's Big Score" to chase down Kevin after he stole the Rustbucket II and later to fight Vulkanus. Later, due to the Nercofriggian reproduction cycle, Big Chill overtook Ben's personality to carry out the process, but Ben doesn't remember anything he does as Big Chill during this cycle.

In Omniverse, Big Chill is larger and barrel chested with bigger wings and the Omnitrix symbol on a green colored waist belt. He looks like a hunchback with his hood on.

Ultimate Big Chill

As Ultimate Big Chill, he is red-skinned version of himself with flame design on his wings, antennae and around his eyes, which causes his face to resemble a mask; and his voice is more gravelly than normal, having a deeper tone behind it. In this state, Ultimate Big Chill can now also create "ice flames", flames that turn into ice, they are flames that consume the heat of whatever they touch, and use that energy to burn, but instead to burn things, it freezes them, much faster than the normal. He was first used in "Hit Em Where They Live", to fight Vulkanus and his Pickaxe Aliens army.

Chromastone

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force and Ben 10: Ultimate Alien and Ben 10: Omniverse

Chromastone is a Crystalsapien (a combination of crystal- and -sapien which means "intelligent being made of crystal"). His home planet is Petropia.[note 2]

Chromastone is alien made of an extremely durable crystal, and has several shards of magenta crystals. He is almost indestructible with his crystal skin; has a great strength and an ability to fly; he is able to absorb most kinds of energy like a conductor and channel it into multicolored laser blasts or less-intense natural light, he can also allow it to pass harmlessly through his body via refraction, or it can be blasted back at the foe; he can seemingly produce blasts without having to absorb energy, though it may be due to absorption of radiant energy like sunlight, or just ambient energy; however he is unable to absorb energy when not expecting it or is too weak to do so. He first used Chromastone to stop the zombified schoolgirls in "All That Glitters".

During the episode "Vengeance of Vilgax: Part 2", Chromastone was destroyed by Vilgax, but the alien's remains reformed into Diamondhead, the reason for this is connected to the fact that Sugilite is the only one of his species. He hid himself until the time came for him to restore Petropia, which was shortly after Vilgax's destruction of the planet. It is believed that Sugilite is the guardian of the Petrosapiens, and that he was created as a backup system for the planet in case the planet was destroyed. Although Chromastone becomes accessible again after the events of "The Secret of Chromastone", Ben didn't use him until the pilot episode of Ben 10: Ultimate Alien, to fight Bivalvan, being very surprised that he still had access to the form.

In Omniverse Chromastone is relatively unchanged. He was first seen being used in Trouble Helix, when Khyber broke into the Plumbers' base for data while Ben was helping Driba and Blukic test energy weapons.

Brainstorm

Voiced by:

Brainstorm is a Cerebrocrustacean (a play on cerebrum and crustacean) from the planet Encephalonus IV (a play on encepha-, a prefix referring to the brain), the previous three Encephalonus planets were all destroyed as the result of primitive Cerebrocrustaceans' attempts to take advantage of the storms surrounding their previous home worlds with poor results. Cerebrocrustaceans are high intelligent crab-like creatures able to perform several complex calculations and use electric attacks with their pincers or by opening the exoskeleton plates that cover their exposed brains. They also have the power to levitate, create force fields, and cause a storm just by thinking. But their intellect makes the Cerebrocrustaceans selfish and eccentric.

As Brainstorm, with the Omnitrix/Ultimatrix symbol in his cephalothorax, Ben speaks with much greater diction and with a British accent. He was first seen in "Pier Pressure", to face Ship, but Brainstorm was an accidental transformation. In Omniverse, Brainstorm has a black and green loin cloth and a black and green stripe in the center of his head. He now speaks with a Scottish accent.

Spidermonkey

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse

Spidermonkey is an Arachnichimp (a play on arachnid and chimpanzee) from the jungle planet Arahnascimmia (which is also called "Arachna"). Dwelling in tree tops to avoid the giant predators on Arahnascimmia's surface, Arachnichimps are four-eyed, four-armed blue monkey-like aliens with the ability to produce strong webbing from their tails.

Since first using the form in "What Are Little Girls Made Of?" to fight Verdona, Ben uses Spidermonkey as one of most used aliens for being able to execute nimble hand-to-hand fighting though has got tangled in his webbing on occasion. Despite not being a strong form, Spidermonkey's wiry frame is suitable to evading danger. In Ben 10: Omniverse, Spidermonkey's design was substantially changed: Having two extra eyes, spiky hair, gray stripes, and two green sashes going across his chest where the Omnitrix is located. He first reappears in "The More Things Change : Part 1", for fight Crabdozer.

Ultimate Spidermonkey

As Ultimate Spidermonkey, he is a bulky purple gorilla-like with four sharp spider legs sprouting from his back, and he had lost his tail and his extra arms. In this state, Ultimate Spidermonkey is stronger and can spit webs from his mouth, in a larger amount, which are very tough and waterproof. He was first seen in the pilot episode of Ben 10 Ultimate Alien, to fight Bivalvan, being the first ultimate form of Ben 10: Ultimate Alien.

Goop

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force and Ben 10: Ultimate Alien and Ben 10 : Omniverse
  • James Remar - Ben 10: Alien Force (As Vilgax in "Primus")

Goop is a Polymorph (a word meaning "many shapes") from the planet Viscosia (a play on viscosity).

He is a 200 pound viscous life form, a shape-shifter made of green goo, which is also slightly of acidic, controlled by an anti-gravity generator developed by the Galvans, that resembles a small flying saucer (which is where his voice comes from), and also has sharp edges. This device allows him to take any shape and levitate; however, if the ship and the slime are separated by even a short distance, the slime will become inert until the ship recollects it, and also it has a button that shuts off the anti-gravity.

In "Deep" Goop used his anti-gravity projector to keep the Piscciss planet's gravity, and he kept his generator there, even when Ben turn to human form, Dwayne McDuffie says the Ultimatrix will generate another anti-gravity projector; he also said that the original species of Goop did not use a projector.

Goop first appears to battles a Techadon in "The Gauntlet". In Ben 10: Omniverse, Goop has an amoeba-like shape; and the anti-gravity projector is redesigned, where the Omnitrix symbol is now on the top of the projector; also when Goop speaks now, a crackle of static is heard at the end of each line as if he is speaking through a walkie-talkie.

Alien X

Ben is voiced by:

  • Yuri Lowenthal - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Bellicus is voiced by:

Serena is voiced by

Alien X is a Celestialsapien (celestial referring to a supernatural being and sapien from the Latin wise), native to their Forge of Creation, their birthplace, outside the known Universe, hidden from everyone aside, except Paradox and who possess the Map of Infinity. Celestialsapiens have black bodies resembling space with tiny white stars, and a white shadow and white hands. They have the power of basically everything, with Paradox even calling them omnipotent. Though all powerful, each Celestialsapien is normally inactive state of internal debate due to two conflicting personalities: Bellicus, the voice of rage and aggression, and Serena, the voice of love and compassion. As Serena and Bellicus have been arguing for eternity, all Celestialsapiens normally remains still for long periods of time. Though the two are usually unable to agree on anything, the two personas do make some exceptions. One being a mutual hatred for Paradox though they exist on the condition that he stays "500 light years" far from them, or any Celestialsapien.

Alien X is the tenth alien that Ben becomes after his Omnitrix was reformatted when he stops a dam that had burst in "X = Ben + 2", becoming a metaphysical medium within his body for both Bellicus and Serena to settle their debates as their voice of Reason. As a result, unless he can have the two personas in agreement, Ben is physically unable to move as Alien X. When none of his ideas worked, Ben gave them the idea to let him become a different alien to fight the Incursions. Since then, though he acknowledges Alien X as one of his most powerful aliens, Ben cannot afford the cost that comes with assuming the form.

After getting the Ultimatrix, Ben had a security protocol installed that locked the Alien X option to ensure the form would not be used if the item fell into the wrong hands and that he would not accidentally turn into it, Gwen and Kevin have the keys that undo the protocol. Ben had this undone in order to get Bellicus and Serena to help him to find the Forge of Creation and stop Aggregor, which didn't work. Paradox ended up getting Ben out of his Alien X form after the boy's attempt to reason with the two personalities failed, prior to them realizing Paradox's presence and were about to vaporize him upon a quick mutual agreement.

Alien X returned in Ben 10: Omniverse, in "So Long, And Thanks For All the Smoothies", now has a bigger chin. Ben finally uses Alien X to save the universe by creating a reality where the "Anihilaarg" was a dud, with slight alterations.

Lodestar

Voiced by:

  • Dee Bradley Baker - Ben 10: Alien Force, Ben 10: Ultimate Alien and Ben 10: Omniverse

Lodestar (a play on lodestone, a magnetic rock, piece of magnetite) is a Biosovortian.

Lodestar has a floating metal head which levitates between his pointed shoulders, which is held in place magnetically, and his mouth doesn't move, has crab-like claws just like the claws on his feet. He has magnetic powers, being able to create magnetic fields, enabling him to repel, attract, emit magnetic pulses, and control metallic objects; and also attack using magnetism waves; he has an armored hull, very tough, but does not support a huge explosion, on the other hand, he can regenerate himself; and also he can make a shield and fly.

At the end of "War of the Worlds Part 2" when the Omnitrix resets itself after Ben reprograms the DNA of the Highbreed, it had unlocked new aliens, Ben transformed into him, but he wasn't seen, just his hologram. His official debut was in "Simple" to defeat the Red Army.

In Ben 10: Omniverse, Lodestar's design is relatively unchanged, the only change is his head, which now has a skull-like shape with yellow horns, similar to Jetray's; also he now can move his mouth when he talks.

Rath

Voiced by:

  • John DiMaggio - Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse
  • Jeff Bennett - Ben 10: Alien Force (As Azmuth in "Primus")
  • Ashley Johnson - Ben 10: Ultimate Alien (As Gwen in "Inspector 13")

Rath (a play on "wrath") is an Appoplexian (a play on apoplexy, an informal sinonym to extreme anger) from the planet Appoplexia. Resembling large, muscle-bound, humanoid tailless tiger-like aliens, Appoplexians suffer from aggressive temperament and decreased reasoning power, having a need to fight anything that breathes regardless of whether they fight their own friends. Their mannerisms and speech are reminiscent of a professional wrestler speaking in third person, saying "Lemme tell ya somethin'!" then followed by the full name of whoever they are talking to. In addition, each Appoplexian has two retractable claws on the wrists that can generate shockwaves when driven into objects. They are durable to the point of surviving in space for short periods and take a powerful laser cannon blast at point blank range without even flinching. But one downside to Appoplexians, other than their tempers, is acute aquaphobia.

Ben first becomes Rath in "The Con of Rath" (A play on "The Wrath of Khan" from the second Star Trek movie) when the crown prince Tiffin sets off the Omnitrix's circuit, and caused it to keep Ben in that state for the whole episode until Tiffin leaves, and when Ben found out that Kevin knew about it all the time, he turned back into him to beat Kevin up. Though being Rath alters his mind, Ben uses him as one of his more powerful alien forms due to being gifted with enough physical agility and strength to easily lift objects far larger than him and pummeling most enemies with ease. Both Kevin and Gwen find Rath the most amusing of Ben's aliens, often laughing behind his back or out of Ben's hearing range while he's Rath.

In Omniverse, Rath's appearance is basically unchanged except he has different shaped eye brows. He reappears in "It Was Them" for fight Dr. Animo's giant ants. It's later revealed that, unlike other Appoplexians, Rath does not wear any clothing.

Nanomech

Voiced by:

Nanomech is a Nanochip/human hybrid being, part drone, part human. He is a Nanosapien (Nano meaning small and Sapien meaning smart)

He is an inch tall being, but it's worth noting he is drastically different from the source alien, which are bug-like, while Nanomech takes more on a humanoid shape. He has the ability to fly with his wings for added maneuverability, which glow when he flies; shoot energy balls from his hands and his eye; and also he is the opposite of Humungousaur, Nanomech can change his body size to a microscopic size to adapt to any situation, but can't grow to any bigger size. However, being a part of the chips' hive mind renders him vulnerable to the Queen's link to the other chips; however, unlike the drones, he retains his individuality.

In Ben 10: Alien Swarm, Nanomach was unlocked by scanning the Nanochips. He was used to enter Victor Validus's brain and battle The Queen; Ben destroyed her and thus the entirety of the chips, freeing everybody from their control.

He first appears in Ben 10: Ultimate Alien episode "Video Games", with his appearance and voice changed; Nanomech would be in a supposed video game he was going to appear in, but Nanomech was regarded too small for the video game. Later in the same episode, he was used to tear apart the insides of Will Harangue's robot.

In Ben 10: Omniverse, he now has a design that combines aspects more from Alien Swarm. He no longer has his circuits, and has different wings and a more robotic voice tone; also his Omnitrix's symbol is now where his eye used to be.

Aliens introduced in Ben 10: Ultimate Alien

Water Hazard

Voiced by:

Water Hazard is an Orishan (A play on oyster) scanned from Bivalvan in "Fame"; from the Andromeda Galaxy.

Water Hazard is a red alien of humanoid origin.[2] He is able to shoot pressurized water from his palms, as well as absorb ambient moisture from the air by manipulating the water; he has a highly durable armored exoskeleton which protects his body from most types of damage, including moderate amounts of radiation; he has enhanced strength and can breathe underwater for a period of time. Water Hazard first appeared in "Too Hot to Handle" to pretend to be Bivalvan and convince P'andor to leave Earth, but did not work because of the rivalry between P'andor and Bivalvan.

In Omniverse, his new design has 4 slitted eyes, and maybe has eyes on his chest and many barnacles-like growths on his body.

AmpFibian

Voiced by:

AmpFibian is an Amperi (derives from the term ampere, an SI unit of electric current)from scanned from Ra'ad in "Fused"; from the Andromeda Galaxy.

AmpFibian is a blue jellyfish-like alien with four tentacles. He has the ability to generate and drain electricity from his tentacles; can sense the electrical pulses in the minds of other life forms, allowing him to read their thoughts, though it seems that Ben doesn't know how to do this; turn intangible, stretch all of his tentacles, and absorb and redirect energy beams. AmpFibian can also travel through air, water, and electronic currents by turning his body into electricity. However, if he is using electricity while entering water, he will electrocute himself.

Though unintentionally first used in "Fused", where Ra'ad entered Ben's body during the DNA scan in a freak accident in an attempt to take the Ultimatrix offline to evade Aggregor to track him down; which explains that the first time, he had blue eyes and had a voice that sounds just like Ben's but it has the effect of being phase-shifted because of Ra'ad. The first intentional use was in "Deep", to breathe under water on the planet Piscciss, where from this time he has green eyes.

In Ben 10: Omniverse, AmpFibian didn't change too much except for his pointed tentacles and the Omnitrix on his face.

Armodrillo

Voiced by:

Armodrillo is a Talpaedan (a play on talpidae, a name for a family of mammals that includes subterranean animals such as moles) scanned from Andreas in "Andreas' Fault"; from the Andromeda Galaxy planet Terraexcava (from Portuguese Terra Excava means "Excavated ground").

Armodrillo is a strong armored robotic armadillo-like alien with a head that looks similar to a Corinthian helmet. He has an invulnerable armor that protects him from most kinds of damage; has two jackhammers-like arms, that allows the ability to drill into the ground, or form jackhammers that cause tremors, shock waves and earthquakes;he can also turn his hands in actual drills, and launch objects from his hands by using hydraulics. Despise all this mechanical appearance, he is biological and the armor and drills are natural. Ben first used Armodrillo to defeat Computron and the robots from the Dimension 12 released by Captain Nemesis in "Hero Time".

In Ben 10: Omniverse, his design now includes a different head shape, bolts on his shoulders and has a metal circle on top of his head; a tail and fingers with horizontal lines.

Terraspin

Voiced by:

Terraspin (a pun on the turtle terrapin) is a Geochelone Aerio (a play on Geochelone, a turtle found in Africa, Asia, and the USA, and "Aerio" a play on air) scanned from Galapagus (Which is just a misspelled and differentely pronounced version of Galapagos, as in the Galapagos islands) in "Escape From Aggregor"; from the Andromeda Galaxy peaceful planet Aldabra (a pun on the island of the Aldabra Group).

Terraspin is a turtle-like alien with holes in chest, and big flat flipper-like arms with retractable claws that can be used as fingers. He has the ability to retract his head into his shell, where an opening in the shell serves as a viewfinder, his fins become triangular and his legs combine into a similar triangular shape, he blows a powerful wind from the holes in its shell while also using his triangular shape arms as propellers; allowing varied powers such as creating winds and spinning himself at high-speed; he uses the blowing ability to fly. Terraspin also has super-human strength, and his species is impervious to mana. Ben first used him to destroy an alien artifact that became a robot accidentally activated by Cash in "Reflected Glory".

In Ben 10: Omniverse, Terraspin now has six holes instead of eight, has spots on his legs, toes and shoulders. Also his skin is now green instead of a tan/brown, and he has gained toes on his feet.

NRG

Voiced by:

NRG pronounced (Energy) is a Prypiatosian-B (a play on Prypiat, a city that was evacuated due to the Chernobyl disaster) scanned from P'andor in "Too Hot To Handle"; from the Andromeda Galaxy.

NRG is a radioactive energy being with Russian accent, encased within an oven-like invulnerable containment suit that contains his radiation. When released, he is able to shoot energy beams and can create intense heat, enough to create the intensity of a nuclear bomb; he is capable of becoming intangible, so he cannot be touched except by the material his armor is made of. His armor is so tough that can only be broken with a sharp piece of Taydenite; but even trapped in the armor he can still use part of his power when it is released. he can shoot energy beams through the holes of the viewfinder, and can generate intense heat, being able to turn his armor red hot and melt solid rock; and has super-human strength. Ben first transformed into NRG by accident to defeat the 10-year old Ben as the original Heatblast in "The Forge of Creation".

In Ben 10: Omniverse, his new design includes a handle-like form on the top of his head, and has bolts on his body. Because of the handle, his armor can be opened easily. His true form wears two straps, a belt, two wristbands on both arms and two knee braces on both legs; and he has another Omnitrix symbol, in his belt. This "outfit" is actually a lower level containment field. Before the Omnitrix times out, Ben must return to the protective suit; it remains unknown what would happen to it if he didn't, but it is most likely to stay around (like how Goop's anti-gravity disk got left behind) and be replaced when Ben changes into NRG again.

Fasttrack

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Fasttrack is a Citrakayah (A play on Citroen) from the planet Chalybeas (From "Chalybeate" mystical waters containing salts of iron possessed by the extinct "Chalybes" community in accordance to the enchanted strength element).

Fasttrack is a blue and black alien with two mask-like projections on his eyes. He moves at high speed like XLR8, and also has enhanced strength as he was strong enough to carry both Hulka and Tack without losing any speed, however, he doesn't easily stop from running, probably because he can't manipulate friction as XLR8 does. He made his first on-screen appearance in "Basic Training" where he saves Tack and Magister Hulka from a malfunctioned grenade. Fasttrack will reappear in Omniverse

Clockwork

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Clockwork is a Chronosapien (Chrono meaning time, and sapien from the Latin wise).

He is a mechanicalrobot-like alien probably made of copper, with a sort of concave circle that shows his gears inside; and the appearance looks inspired on a Mayan golem, but has a Swiss accent.

By using a green ray, he can fire a powerful blast; and can also project the past events by spinning his protrusion on his head, probably like a hologram projector; however, as he is made of copper, he isn't so durable, being easy target to energy or close range strikes.

He debuted by Ben 10,000 in "Ben 10,000 Returns", used to send Eon to the past, and to destroy the Hands of Armageddon with the help of 16-year old Ben as Way Big. He appears later in "Inspector 13", when the Ultimatrix malfunctions, causing Gwen and Kevin to transform into the Ultimatrix aliens. Ben debuts as him in "Catch a Falling Star", to fight Overlord.

In Ben 10: Omniverse, Clockwork's design is relatively unchanged; he only has a larger body and a wind up-like shape on his protrusion on his head. During the events of "Ben Again", trapped within his 11 year old body, Ben briefly accessed a younger version of Clockwork.

ChamAlien

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ChamAlien is a Merlinisapien (a pun on Merlini, a frog term, and Sapien). Lizard-like with red, green, and blue triangles on the head, a Merlinisapien can change colors to camouflage himself with only his shadow visible; he can also grow a spike out of the end of his tail; in addition he is very agile, flexible, fast, slippery, has a great strength, and can also stick to surfaces with his great physical adherence.

Ben obtained ChamAlien from one of the last living Merlinisapiens, designated "Prisoner #775", after the events of the titular episode. While assuming the form for the first time, Ben joking called the form "Overkill" as part of a joke by Ben suggested by Gwen earlier in the episode about the fact that he shouts out his alien forms' names. ChamAlien will reappear in Omniverse

Shocksquatch

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Shocksquatch (A play on electric shock and Sasquatch) is a Gimlinopithecus (A play on Robert Gimlin and Gigantopithecus) from the planet Pattersonea (A play on Roger Patterson). Gimlinopithecuses are Yeti-like aliens with great coordination and strength, they have small metal plates all over their bodies that can conduct electricity. Their only weakness is being insulated, making their ability to conduct electricity useless. He speaks with a Canadian accent.

Ben briefly became Shocksquatch in the special crossover "Ben 10-Generator Rex: Heroes United" due the Alpha nanite hacking the Ultimatrix a couple times.

In Ben 10: Omniverse, Shocksquatch was entirely re-designed, he appears slimmer than usual and he now has yellow and black fur, along with bigger fingers and toes; he also now has two plates on the side of his wrist instead of the back of his hands. He now has green eyes with black pupils, and has yellow horns; his symbol is on a green belt. He reappears in "The More Things Change" 2-parter to defeat Buglizard.

Eatle

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Eatle is an armored robotic humanoid alien with a beetle-like horn and a big metal mouth. He has sharp fingers, and an enhanced strength, allowing him to eat big pieces of any material; and has powers similar to Upchuck, he can eat many things, and convert them into powerful laser beams that he shoots from a slot on his horn; he can also use the horn as a battering ram and possess a durable hull; however Eatle has a blind spot due to his eye placement, making him easier to sneak up on. He briefly made his debut in "A Knight to Remember", on a short failed attempt to fight Vilgax.

In Ben 10: Omniverse, Eatle was also re-designed: his look is not robotic or humanoid and now is similar to a Japanese rhinoceros beetle; he is green instead of blue, and also he can move his mouth.

Jury Rigg

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Jury Rigg (a play on jury rigging) is a 5-inch gremlin-like alien able to disassemble and assemble any machinery in quick time. He was first introduced in "The Eggman Cometh" three times: the first one was by accident, where Ben wasn't easily able to control him and ended up disassembling part of Kevin's car; then he was used to destroy Dr. Animo's machine, and also turned into him again to fix it all after Ben manages to utilize Jury Rigg's abilities. In Ben 10: Omniverse, Jury Rigg has a pink skin instead of orange, and ironically now wears a 1900s aviator's suit, which includes goggles and a scarf that further his Gremlin-like features.

Aliens Introduced in Ben 10: Omniverse

Feedback

Feedback is a Conductoid (a play on conduct) from the planet Teslavorr (tesla- is from Nikola Tesla, a physicist who was renowned in his works in electric manipulation; and vorr is a play on vore, a Latin meaning for "to devour").

He is a humanoid alien that speaks with electrical tone of voice; he has plugs on the tip of his fingers, tail and on his two antennae which also makes him look like a jester. He can use these plugs to absorb and redirect most kinds of energy by direct contact or from a distance; and he also uses the electricity to grind on electric lines and fly by using it as propulsion.

Feedback was Ben's top favorite prize winning handy alien when he was 11, using him even when he wasn't useful. But due to Ben's overuse of the form, as revealed in the flashback events of "Showdown", Feedback was destroyed by Malware while removed from the Omnitrix. As a result of the event, the Conductoid DNA was unable to be reintroduced in the Omnitrix. However, in the final battle with Malware in "Showdown: Part 2", Ben regained the ability to become Feedback again.[note 3] This version looks similar to the younger version but has a black and green color scheme and is more muscular with golden bolts on his shoulders, arms, and hips. Feedback replaces Buzzshock in omniverse.

Bloxx

Bloxx (a play on "blocks") is a Segmentasapien (Portmanteau for "Segment" for part and "Sapien" for wise in Latin) from the planet Polyominus ("Poly" for many), whose body is totally composed by building blocks as his name states.

His primary power is shape shifting. He can alter his body structure into any form needed; this includes some regenerative ability. He can also can use his blocks to stretch and build himself. Due his shape-changing abilities based on blocks, his body is fragile and is easily broken when hit with enough force, but since he can regenerate it doesn't matter whether his body structure is broken or not. Ben first uses in "The More Things Change Part 1", to save the alien grocery store of Bellwood and to help Rook disable the bomb.

Gravattack

Gravattack (A play on "gravity" and "attack") is a Galilean (From Galileo Galilei, the astronomer who discovered gravity) from the planet Keplorr (From Johannes Kepler who discovered the laws of planetary motion). He is a living planetoid alien with a giant mouth and a molten (planetary) core at the center of his body and has the Omnitrix symbol on his forehead.

Gravattack has the power of manipulating the gravity of himself and others, changing the mass, making it heavier or lighter. Also with his gravity manipulation, he is able to make objects "orbit" around him like a planet and he can convert himself into a planet for better influence. He first appears in "A Jolt from the Past" to fight Fistrick in his Class 12 Armored Mecha Suit.

Crashhopper

Crashhopper (A play on "grasshopper") is an Orthopterran with the primary power control the muscles of his legs, allowing him to jump in a long distance on a high speed, causing a sonic boom. Due to his powers based on high jumps, he possesses a resistant skull, which is used to hit with great impact.

Ben debuted Crashhopper in "It Was Them" to fight Dr. Animo's army of mutant ants and to fight Khyber's pet. Crashhopper is one of the most used aliens in Ben 10: Omniverse and seems to be Ben's current favorite alien. However, unlike with Feedback, Ben has learned not to rely on him as much.

Ball Weevil

Ball Weevil (A play on "boll weevil") is a small yellow beetle-like alien with the ability to spit sticky balls of plasma; this goo ball absorbs matter while it rolls, getting bigger and explodes upon impact, or expanding until detonating, making the force of the explosion vary depending the size of the ball. He also has an enhanced agility, which allows him to move his goo to hit on where he wants, and also seems that he can resist the explosion against himself, even when he is stuck on the goo.

Ball Weevil makes his first appearance in "Of Predators and Prey: Part 1", in a failed fight to defeat Khyber and his dog. The natural predator of Ball Weevil is the Nemetrix's Terrorantula.

Walkatrout

Walkatrout (a play on walkabout and trout) is a blue fish-like alien, Walkatrout is also the species name. It has a slippery body, enhanced agility, and is presumed to have the ability to breathe underwater.

He first appeared in "Outbreak" while Blukic and Driba were trying to fix the Omnitrix.

Pesky Dust

Pesky Dust (a play on "pesky" and pixie dust) is a pixie-like alien who has the ability to fly.

He first appeared in "Outbreak" while Blukic and Driba were trying to fix the Omnitrix.

Molestache

Molestache (a play on mole and moustache) is a mole-like alien with a moustache, presumably having the ability to dig. He is dressed in black and green suit, with a green hood, leaving only his face exposed. On Molestache's face, he has green eyes, orange skin and a yellow mustache.

He first appeared in "Outbreak" when Blukic and Driba were trying to fix the Omnitrix. In Store 23, Ben showed them to Ben 23 to see what aliens his dimensional counterpart had unlocked.

The Worst

The Worst is a fat, yellow alien that wears green underwear. He can withstand heavy attacks and is physically unfit. So he is not best used in offensive combat.

He first appeared in "Outbreak" when Blukic and Driba were trying to fix the Omnitrix.

Kickin Hawk

Kickin Hawk (a pun on "kicking" and "chicken hawk") is a chicken/hawk-like combatant alien with a white mohawk-like comb. His powers are retracting talons from his hands and scythe-like blades from his elbows and using them for battle. He can cut objects by using the blades on his arms. Ben accidentally downloaded Liam when fighting him. He scanned him and turned into a Ben 10 version of Liam and called him Kickin' Hawk.

He first appeared in "Outbreak" fighting Liam, his genetic donor despite being more chicken-like.[3]

Toepick

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Toepick is a green-skinned, ogre-like alien who wears a metal cage as a helmet to conceal his horrific face which induces fear in any who see it. Toepick cannot look at his own face without fear, and his own species cannot look at each other for the same reason. The Omnitrix symbol is on the bottom of the collar his cage is on, which is connected by chains to a pair of black briefs.

Toepick was mentioned in the original series' non-canon episode "Ken 10", as one of the ten accessible aliens in Ken's Omnitrix. He makes his debut appearance in the episode "Special Delivery" to overwhelm Psyphon with his face.

Astrodactyl

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Astrodactyl (From Astro and Pterodactyl) is a pterosaur-like alien that uses a propulsion jetpack to fly. Astrodactyl also uses an internalized star power from sonic booms to energy whips. Astrodatcyl makes his debut appearance in the episode "While You Were Away" to fight Dr. Pyschobos.

Bullfrag

Voiced by:

Bullfrag (From "Bullfrog", and the prefix -frag, which means annihilate.) is an Incursean. (("frag" could also be a reference to the Incurseans' Boston-like accent, as they would pronounce words differently, making "frog" sound like "frag".))

Ben gained Bullfrag during the episode "The Frogs of War" by Azmuth and used the Omnitrix's "Life Form Lock" mode to remain in the form until the second order. This way, Ben used him to impersonate an Incursean to help his Plumbers team against the Incursean invasion and also used him to distract Princess Attea. As something disturbing to Ben while in this form, Bullfrag has a mutual attraction to Princess Attea.

Gutrot

Gutrot is an upcoming alien who appears in episode 45 "Animo Crackers".

Whampire

Whampire is a vampire-like alien who appears in episode 48 "The Vampire Strikes Back". It was previously revealed that the Transylians on Anur Transyl drove a vampire-like race called the Vladats into extinction, so it is possible that Whampire is the Omnitrix's DNA sample of a Vladat.

Notes

  1. ^ Dwayne McDuffie revealed that Big Chill cannot turn invisible, and when he did, it was an error.
  2. ^ the events in Ben 10 Alien Force: Vilgax Attacks being non-canon for Sugilite, who is the genetic donor for Chromastone, is the sole Crystalsapien and the guardian of Petropia(Diamondhead's Planet)
  3. ^ Due to episodes airing out of order, the form was first seen in "Store 23".

References

  1. ^ "Bandai's Cannonbolt profile at Ben10Toys.net". Archived from the original on 2008-08-22. Retrieved 2007-04-18.
  2. ^ "Ben 10 Aliens list".
  3. ^ http://www.youtube.com/watch?feature=player_embedded&v=QTNwy63QXvw
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