In the future, Heatblast has flames coming out of his shoulders and his head looks bigger.
Is a Vulpimancer from the garbage planet Vulpin (a play on vulpine, which means fox). Ben first transformed into Wildmutt in "And Then There Were 10" after his second experiment with the Omnitrix. This was Ben's first intentional transformation. Wildmutt is a vaguely dog-like alien whose physical features are a cross between a lion and a gorilla. Wildmutt's powerful arms allows him to run, jump, and climb objects at high speeds, in addition to making him fairly strong. Wildmutt has no eyes, but has gills on his neck that allow him to hear and smell many times better than humans, giving him radar-like sight, which is depicted as functioning somewhat like a thermograph sensor. 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 Wildmutt while he's rolling, or as projectiles fired off at will. This ability is unique to adult Vulpimancers, and since Ben's version is only ten years old, these quills haven't fully developed. Wildmutt's weakness, though it is rarely an issue, is his lack of sight, which can be impeded through various means, and he is rendered effectively useless if his nostrils are clogged. Wildmutt is also the only Omnitrix alien who cannot speak in any understandable fashion, communicating through snarls and growls, which can be a problem when attempting to relay messages or avoid conflict. When Ben gets a cold and turns into Wildmutt, Wildmutt's gills are clogged with mucus, effectively blinding him. Wildmutt can be defeated easily by using a loud sound or a sharp chemical.
In the future, Wildmutt has much more pronounced feline traits, including stripes and a tail.
Is a Petrosapien ("Petro-" referring to rocks, "sapien" referring to an intelligent being; Petrosapien would then mean "intelligent rock") from the planet Petropia (a combination of the Greek "Petro-" and "topos", forming a word similar to "rock place"). The planet was destroyed by Vilgax with assistance from Tetrax, who unknowingly helped him create the weapon that destroyed his home.This was originally the case, but in Ben 10: Alien Force, at the episode "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 (all but Tetrax, as he was offworld watching the destruction of his planet from Vilgax's ship, the Chimerean Hammer). Ben first transforms into Diamondhead in "And Then There Were 10" when he needed to destroy Vilgax's giant robot. 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.
Diamondhead's body is composed of an extremely durable organic crystal, 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 regrowing lost limbs. In addition to growing crystal from himself, Diamondhead can grow crystal over other objects. Lasers and other similar weapons are useless against Diamondhead, as his crystal body acts as a prism, refracting the 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.
In Ben 10: Alien Force, Diamondhead reappears after Chromastone is temporarily destroyed by Vilgax. He no longer wears a costume, instead having a body composed of material similar to that of Chromastone, and the Omnitrix symbol moves to his chest from his left-chest. In the future, Diamondhead looks a little bigger and has bigger crystal cones on his back.
Is a Kineceleran (a portmanteau of the words 'kinetic' and 'accelerate') from the planet Kinet (the first part of kinetic, which is movement energy). Ben first transformed into XLR8 in "And Then There Were 10" when he decided to play around a bit with his newfound power, using the form to get revenge on some bullies that he fought with earlier in the episode. XLR8 resembles a semi-armored velociraptor, the base creature for the form's design. XLR8 has wheel-shaped feet and wears a helmet with a windshield, which is part of his alien biology, leaving the features of his head unknown. Kinecelerans are said to be incapable of running on slippery surfaces. Furthermore, because of their constant motion, Kinecelerans build up large stores of static electricity, which reacts badly with water. XLR8 has never had either of these problems. XLR8 can manipulate friction to reach speeds of 300 mph in an instant, and the same power allows him to climb up walls and run on water with relative ease. Using his speed, XLR8 can perform a number of unique feats. He can create tornadoes through centrifugal force, either through running in a small circle or spinning, and can deliver speed-enhanced attacks in rapid succession. Amazing reflexes accompany this speed, allowing XLR8 to quickly dodge attacks with relative ease. His scissor-like claws can also cut through objects. XLR8's weakness is his lack of physical strength, which is about on par with a normal human, although his speed tends to make up for it. Magnets and charged pulses are said to be a problem, apparently disorienting Kinecelerans to the point that they cannot balance properly.
In the future, XLR8 has a more pointed head, and his eyes seems to be larger; with their color replaced by bluish gray, and he has a scanner built into the helmet, the product of nanotechnology Ben 10,000 uses to enhance his aliens.
Is a Galvan (the former a play on actual grey matter and Greys, the latter a play on galvanization) from the planet Galvan Prime. Grey Matter's size belies his great calculative and technical intellect, and when it comes to intellect he's second to none. He can create almost anything from spare parts and deduce the function of any device at a glance. Also, Grey Matter's intellect serves as a problem solver and analytical help in difficult situations. Grey Matter's diminutive size allows him to squeeze into small spaces, and he can climb walls thanks to tiny suction cups on his skin. He also has sharp teeth, and his slimy skin makes him difficult to grab. Unfortunately, Grey Matter's size makes him unsuitable for battle, and hence Ben must outsmart his enemies while using the form. Grey Matter has, however, proved very valuable when used, as he is capable of hiding in very tightly compacted areas, and the form's supreme intellect has helped in many situations. Ben officially first transformed into Grey Matter in "Washington B.C." when he saw that a gold Sumo Slammer card could be found in a box of cereal, Gwen found him looking for the card in the cereal boxes at the supermarket. Although Ben rarely intentionally selects Grey Matter, he often finds himself in that form as a result of accidental transformations. Most of these situations occur when Ben intends on transforming into a large, powerful alien, making his change into Grey Matter all the more ironic.
A Tetramand (tetra meaning "four" in Greek, mand being "arms" in Latin) from the desert planet Khoros. Khoros epitomizes a dystopia, resulting in the strength-oriented Tetramands.Four Arms is the most used alien in the original series, since it is the form that most suits 10-year-old Ben's fighting style: blindly rushing at the enemy with little forethought. Ben first transformed into Four Arms in "Washington B.C." when he needed to fight the giant woolly mammoth that Dr. Animo had reanimated. Four Arms is a 12-foot-tall (3.7 m) four-armed, four-eyed powerhouse with armored skin and extremely dense musculature, making him unmatched in pure physical strength. His strength is such that he can 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. However, all the extra mass of his muscles and heavy skin makes Four Arms relatively slow, and his size likewise makes using things designed for smaller species difficult, especially when enlarging them is a bad idea. When under the effects of an illness, Four Arms' strength and stamina are somewhat lessened and he develops pungent hives in his armpits.
In Ben 10: Ultimate Alien, he no longer wears a costume, the Omnitrix symbol moves to his chest from his left shoulder, and he has an appearance reminiscent of a Greek warrior, with bracelets and a ponytail, and has green eyes instead of yellow. In the future he is larger, the spikes on his arms are bigger, the canine teeth are more developed, and he wears his original costume.
Is a Lepidopterran from the swamp planet Lepidopterra (a play on lepidoptera, the scientific name for butterflies and moths). Another of Ben's more commonly used forms, Ben first transformed into Stinkfly in "Washington B.C." when he had to save Gwen after she fell from the Washington Monument. Stinkfly is meant to be a combination of various Earth insects (dragonflies, crickets, and praying mantises specifically). His primary ability is flight facilitated by the four thin wings on his back, which grant Stinkfly high mobility and speed. Stinkfly also possesses disproportionate strength, enough to carry people and objects heavier than himself. In "Don't Drink the Water", the child form of Stinkfly (Stinkyfly) was able to unleash a powerful herbicide gas by farting. Stinkfly's four eye stalks give him a wide range of vision from the sky, including the ability to look directly behind himself. Pollen ducts in his eyes and mouth allow Stinkfly to excrete high-pressure streams of liquids. The type of liquid can range from a flammable toxin to an immobilizing jelly. His razor-sharp tail and pincer-like legs can also be used in melee combat. Stinkfly's primary weakness is water, which can negate his flight if it gets on his wings. In addition, while his body is fairly strong, his wings are not. A more minor inconvenience is Stinkfly's intense body odor (hence the name), which is a result of the oils he secretes to keep his joints moving.
In the future, Stinkfly has the front legs resemble those of a mantis, has antennas, the pupils are visible and their stinger is bigger.
Is a Piscciss Volann (from piscēs, the Latin word for fish) of the water planet Piscciss. Ben first transformed into Ripjaws in "The Krakken" in order to take the Krakken's eggs back from Jonah Melville. Ripjaws shares a number of traits of Earth aquatic life-forms—namely alligators, eels, anglerfish, and sharks—combined into a single being. Naturally, his main ability is being able to breathe underwater. Ripjaws can also withstand a remarkable amount of pressure, and his luminescent dangler allows him to see in the darkest of depths (or otherwise dark areas). He can swim at great speeds, and his sharp teeth and claws can pierce through almost anything. His lower jaw can unhinge to allow him to bite much larger objects. Though his tail hides a pair of legs for travel on land, Ripjaws is limited by his need to remain hydrated, dehydrating rapidly if left out of the water for even a few minutes, therefore, he is the one of the aliens less used in the series.
Is a Galvanic Mechomorph (mecho- meaning machine and -morph meaning shape) of the moon Galvan B, which orbits Galvan Prime.Ben first transformed into Upgrade in "Permanent Retirement" to stop some criminals who were robbing an ATM. Upgrade is the only alien form in which Ben's voice does not change, aside from the more computerized tone behind it. The reason for this is revealed in the enhanced version of "Game Over"; Galvanic Mechomorphs can't bond with living organisms, so Ben's transformation into Upgrade is incomplete.
Upgrade is composed of nanotechnology, allowing him to reshape his body at will.This makes restraining or harming him difficult, as he can "melt" to avoid either and will quickly regenerate from any damage taken.Upgrade can also merge with other technology, earning his name by upgrading it far beyond its original design as long as he is merged with it. The size of the device is inconsequential. While merged with a device, Upgrade controls it as he would his own body.Even without a machine at hand, Upgrade can reconfigure his form around his eye to fire a plasma beam from it. Upgrade is also capable of forming simple constructs from plasma, such as spikes. Upgrade's weakness is his specialization: being technology-oriented, Upgrade cannot possess biological creatures, and sentient or more powerful robots are harder for him to control. Upgrade's liquid-metal composition can also work against him, namely where electrical attacks are concerned. Furthermore, any sort of metal corrosive can upset Upgrade's delicate internal workings and wreak havoc on his systems. He has also proven to shoot green lasers when he is angry, though this has rarely happened.
Was originally one of Ben's aliens who's DNA was taken from Zs'Skayr, the High Ecto-Lord of the Ectonurite homeworld of Anur Phaetos, who existed in the Omnitrix due to Ectonurite's having the ability for their mind to exist in even in the smallest strand of their DNA. Ghostfreak's original appearance was similar to that of a ghost with a black track along his skin but after freeing himself, he tore off the protective second skin to reveal his true horrifying form. He has the power to phase through matter and possess humans by going into them and controlling them. He also has telekinesis over beings he possesses and becomes far stronger if he's in complete darkness, which allows him to become even scarier in appearance and fire a powerful energy beam from his chest. However, his weakness is without the second skin protecting him, sunlight can cause him to combust and die.
Ghostfreak first took over Ben offscreen to contact Dr. Vicktor to stage an invasion of Earth. He eventually broke free of the Omnitrix, and tried to possess Ben repeatedly. Later, his minion Doctor Vicktor revives him and he tries to block out the sun so he can conquer the Earth, fighting Ben and eventually being exposed directly to the sun to defeat him, but not before his DNA was re-added to the Omnitrix, only in his true form.
Zs'skayr was eventually contained, but Vilgax freed him in exchange for information about the Omnitrix. Unfortunately, Zs'skayr betrayed Vilgax and conquered his homeworld of Vilgaxia, turning its population into copies of his original form. Ben eventually reabsorbed Zs'skayr but was overtaken by him. While Vilgax fought, Zs'skayr was stunned in a flash of light, letting Ben return him to the Omnitrix. But in Ben 10: Ultimate Alien theme it is shown that he is able to still turn into him but it is not shown if he still an incarnation of Zs'skayr
Is an Arburian Pelarota (based on pelota, Spanish for "ball" and rota, a play on "rotation") from the planet Arburia. The information from the Bandai Alien Collection toy for Cannonbolt refers to his species as a Vulpinic Tortugan (tortuga is Spanish for "turtle") from the planet Vulpin, from which Wildmutt also originates. The Vulpinic Tortugans are Pellorotors that moved to Vulpin, then mutated due to the pollution and developed the ability to breathe fire. The Pellorotor home planet was destroyed by "The Great One" shortly before Ben discovers the form in "The Big Tick".
Cannonbolt is the first new alien to appear on the Omnitrix,and eventually replaces Ghostfreak in the opening theme. Cannonbolt 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. This armor can resist almost any attack, ranging from acids to lasers to extreme heat. By curling up into a ball, much like an armadillo or pillbug, Cannonbolt can encase himself in his armor, becoming virtually invulnerable. On Cannonbolt's planet curling up into a ball is a defence mechanism. He can then spin himself like a wheel, rolling into enemies at high speeds to attack.The drawback is that Cannonbolt quickly picks up inertia, which can make hitting more maneuverable targets difficult, as he can't 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.
In Ben 10: Alien Force and Ultimate Alien, the only change was the Omnitrix symbol, he moved to his chest from his forehead, and the eyes, which then passed from yellow to green .In the future, Cannonbolt has black-colored legs and black rings at the base of his fingers.
As Ultimate Cannonbolt, his body is now cyan with a darker shade of gray on his now spiked armor. Ben used Ultimate Cannonbolt to hold Kevin and P'andor, allowing Kevin to seal P'andor back in his suit.
Is a Florauna (a combination of flora and fauna) from the planet Flors Verdance (a combination of flora and verdens, Latin for green). Wildvine makes his first appearance in the episode "Camp Fear" as an accidental transformation. Wildvine is a plant-based alien with five vine-like legs, four-fingered claws, and venus flytrap-shaped flaps covering his head. Wildvine can grow to stretch his limbs great lengths or grow thorns to cause additional damage. He can also merge with other plants, and can burrow underground to conduct surprise attacks or travel quickly. Eight regrowable seeds on his back can be used as various types of explosives, both lethal and non-lethal. When exposed to cold, kept from sunlight, or deprived of a water source, however, Wildvine quickly withers up.Ben has never encountered this problem, likely due to the limited periods in which the form is used.
Is a Florauna (a combination of flora and fauna) from the planet Flors Verdance (a combination of flora and verdens, Latin for green). Wildvine makes his first appearance in the episode "Camp Fear" as an accidental transformation.
Wildvine is a plant-based alien with five vine-like legs, four-fingered claws, and venus flytrap-shaped flaps covering his head. Wildvine can grow to stretch his limbs great lengths or grow thorns to cause additional damage. He can also merge with other plants, and can burrow underground to conduct surprise attacks or travel quickly. Eight regrowable seeds on his back can be used as various types of explosives, both lethal and non-lethal. When exposed to cold, kept from sunlight, or deprived of a water source, however, Wildvine quickly withers up.Ben has never encountered this problem, likely due to the limited periods in which the form is used.
Is a Spheroid from the rainy planet Scalpasc. A large, blowfish-like alien, Spitter has the power to spit slime at high pressures.
In "Ben 10,000", Spitter is an alien used by adult Ben Tennyson in his fights with Dr. Animo and Vilgax.
Is a Megawhatt (the electric aliens from "Tourist Trap") from the Nosedeen Quasar with electric powers (a megawatt is a unit of power equal to one million watts, while quasars are astronomical bodies capable of producing vast amounts of energy). Buzzshock has electrical based powers, can fly, duplicate himself and make sonic howls. In "Ben 10,000", Buzzshock is one of the aliens used by adult Ben Tennyson in his fight with Dr. Animo.
Is a Megawhatt (the electric aliens from "Tourist Trap") from the Nosedeen Quasar with electric powers (a megawatt is a unit of power equal to one million watts, while quasars are astronomical bodies capable of producing vast amounts of energy). Buzzshock has electrical based powers, can fly, duplicate himself and make sonic howls.
In "Ben 10,000", Buzzshock is one of the aliens used by adult Ben Tennyson in his fight with Dr. Animo.
Is a Polar Manzardill, one of many types of Manzardill, from the polar ice caps of X'Nelli. He is a blue iguana-like alien that can breathe freezing vapor.
In "Ben 10,000," Arcticguana is one of the aliens used by adult Ben Tennyson where he uses this form to freeze Vilgax in the river.
Is a Loboan (as in Lobo, Spanish for wolf) from the Anur Transyl moon, Luna Lobo (literally translating from Spanish as "Wolf Moon"). This character would seem to be based on the Wolf Man, from various horror films of the mid-20th century, to keep with the "horror" element associated with Ghostfreak. Ben obtains this form after an alien of the same species scratched the Omnitrix in the episode "Benwolf", causing its DNA to be added into Ben's selection of aliens. According to the show's "popup edition", the result of Ben's battle leaves the Omnitrix half way between "Collection Mode" and "Active Mode", causing him to transform over the course of several hours instead of instantly as he normally does. He has super agility and can send a green shock wave by peeling back his lupine snout. He can propel himself like Heatblast by sending his shock wave on the ground. It is noted that he was never used again for unknown reasons.
Is a Thep Khufan (playing with the word Khufu, an Egyptian pharaoh) from the desert planet Anur Khufos. This character would seem to be based on the Mummy, from various horror films of the mid-20th century, to keep with the "horror" element associated with Ghostfreak. Ben gains this form in "Under Wraps" when another Thep Khufan inadvertently adds its DNA to the Omnitrix, but accidentally transforms into Upgrade instead when trying to use him. Ben first uses the form in "The Return" to fight off theYenaldooshi. The credits give the name "Benmummy," though Ben never named it on-screen. Ben's version looks slightly different, with his eyes and the gaps between his bandages glowing green instead of purple. Benmummy also has black bracers and greaves, as well as a smaller mask and the Omnitrix symbol on his left shoulder. Benmummy can speak, even though the original seems to be mute. He also makes a short appearance in "Ken 10".
Is a Transylian (a play on the region of Transylvania, the setting for many monster movies) from the planet Anur Transyl. This character would seem to be based on the Frankenstein Monster, from various horror films of the mid-20th century, to keep with the "horror" element associated with Ghostfreak. Ben first gains this form while battling with Doctor Vicktor in "Be Afraid of the Dark", during which time Doctor Vicktor accidentally grabs the Omnitrix. Ben uses the form later in the same episode to fight Ghostfreak. The credits give the form's name as Benvicktor, even though Ben himself has yet to name it. Benvicktor looks slightly different from Doctor Vicktor, the source alien. Benvicktor sports longer hair, a smaller left eye, possesses excellent reflexes, able to quickly spin around and backhand a super-speeding XLR8 when the latter attempted a sneak attack on him, is super strong and agile for his monstrous size, intelligent, can teleport, and generates green lightning rather than purple.
Is a Gourmand (from the French word gourmet meaning one who enjoys fine food or glutton) from the planet Peptos XI (Peptos being the Greek word for 'cooked' or 'digested' and the XI being the roman numeral for eleven).Upchuck first appears in the episode "The Visitor", in which an alien named Xylene enters a code into the Omnitrix to activate the form.
Upchuck is a small alien with a very large appetite. He has four strong, adhesive tongues that can stretch to great lengths, allowing him to latch onto large objects and reel them in with relative ease. Upchuck's mouth and stomach stretch to facilitate the digestion of such objects. Upchuck possesses several acid-filled stomachs that can dissolve all forms of inorganic matter, meaning he can't digest organic matter such as ordinary food. The items ingested are converted into explosive balls of liquids that can be expelled at will with great accuracy.He can also eat energy and rays, when he eats rays, he can shot the ray just as it is fired. Upchuck also seems to have impressive stamina for his size, as he is able to take on the impact of a moving car as well as survive being thrown through a wall. An impediment to Upchuck is his small stature. Despite his appetite, Upchuck can't seem to easily digest human food, as Ben realized when he tried to eat pizza, only to discover the alien form did not like the food.
In Ben 10: Alien Force and Ultimate Alien, his appearance is slightly different from the original series, with the Omnitrix symbol moved to his chest from his left-hand, a new color scheme consisting of shades of brown and yellow with black spots on his skin, and green eyes instead of white.
Is a Splixson (based on the word "split") from the Earth-like Planet Hathor. Ditto is a humanoid alien with the ability to clone himself without limit. Every clone operates independently, regardless of whether or not Ben wants them to, and indistinguishable from the others. Though the clones are autonomous, they share each other's pain, and the death of one clone will cause the death of the rest, which negates the usefulness of making large numbers of clones. The child-size Ditto is also no stronger nor faster than his size and build suggests. Ben activated Ditto accidentally in the episode "Divided We Stand", to fight against gulls mutated by Dr. Animo.
Was introduced in the first alternate opening of "Ben 10: Secret of the Omnitrix", replacing Heatblast during the fight with Doctor Animo.How Eye Guy was obtained is never addressed. Eye Guy's upper-body is covered in eyes, hence the name, though he ironically has no eyes on his head, which consists of a mouth and a very large pair of batlike ears. From these eyes, Eye Guy can fire numerous energy beams. The eyes can be merged to create different effects, such as three on his shoulder, which can form a freezing beam. By merging every eye into the large eye in his chest, he can fire his strongest energy blast. He can also scale walls. His only appearance in the TV 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.
Is a To'kustar (from the Japanese term "tokusatsu", given Way Big's resemblance to characters from the Ultra Series), not so much an alien species as an anomaly created during cosmic storms.He is by far the biggest alien in Ben's arsenal. Way Big's size grants him extraordinary strength, enough to throw Vilgax into space when he'd grown to the same size, and invulnerability to most attacks. Way Big is introduced in "Ben 10: Secret of the Omnitrix" for Ben 10 but he first appears being used by Ben 10,000 when Kevin 11,000 hurt his son Ken.
Way Big, like Upchuck and Cannonbolt, returns in the second season finale of "Ben 10: Alien Force" after Azmuth unlocks the Omnitrix master control. His face is longer and has less detail. He also two green eyes instead of four yellow.
Was introduced in the Live-Action movie Ben 10: Race Against Time when the antagonist, Eon, was using the Omnitrix in its purple form and used it to make a younger version of himself without a helmet. Young Eon was activating the Hands Of Armageddon and Gwen was telling him to snap out of it, but it only worked when she said she loved him and Ben got his Omnitrix symbol back, changing back to Ben. Eon escaped the Omnitrix, and Ben as Wildmutt killed him and destroyed the Hands Of Armageddon. Eon has the ability to control and transport in time, to control machines and shoot pink energy blasts.