Upchuck

Upchuck is the Omnitrix's DNA sample of the Perk and Murk races of Gourmand from the planet Peptos XI.

Appearance
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. He also has a green tail.

In the original series, Upchuck wore a black open-front suit with white over-sleeves and white bands around his legs and white padding under his three-toed feet and wears the Omnitrix symbol on his left hand.

In Alien Force and Ultimate Alien, Upchuck is a Murk Gourmand, appearing with swampy-green skin, tanned stomach and muzzles, black digits and black-green spots on his tail, limbs, hips on his back. His eyes are now sharper, look pupil-less and green. His teeth are now more aligned with visibly sharp canine teeth. He wears the Omnitrix/Ultimatrix symbol on his stomach.

In Heroes United, Upchuck's black lines on his face are longer, reaching his mouth. Also, he only has two lines instead of three. His claws are attached to his hands through finger stubs.

In Omniverse, 16 year old Upchuck has two different looks, due to there being two races of Gourmands catalogued in the Omnitrix. His Murk form closely resembles his 11 year old form without clothes. His Perk form resembles his Alien Force/Ultimate Alien design except that his claws are longer and bigger, his sprouts are brighter and he has less spots on his body. He has only two teeth.

11-year-old Ben as Upchuck in Omniverse looks almost the same as the original series, but now has green eyes the Omnitrix symbol on his left hand is now green, and he doesn't have the padding on his feet.

Powers and Abilities
Upchuck has four very strong, adhesive tongues that can stretch to great lengths, allowing Upchuck to latch onto large objects and reel them in with relative ease.

Upchuck's mouth and stomach can also stretch, allowing him to swallow and digest objects fairly larger than himself.

Upchuck possesses several acid-filled stomachs that dissolve almost all forms of matter. In Ben 4 Good Buddy, it's revealed that he cannot consume organic matter. The items ingested are converted into explosive balls of liquids that can be expelled with great accuracy. He can also make them curve, like a boomerang, shuriken, or frisbee.

Upchuck is able to take a surprising amount of punishment for a creature of its size, taking the force of a moving car impact as well as surviving after being thrown through a wall.

In Duped, it is shown that Upchuck can spit out slime.

Upchuck can also eat and spit out energy, such as lasers, in the same way he eats and spits out matter.

In Heroes United, Upchuck was capable of eating Alpha's containment ball, demonstrating to have very strong and durable tongues, as the ball weighed an immeasurable amount.

Weaknesses
Upchuck has a limit to how many big objects he can swallow at once.

Upchuck is also slow when he eats a lot of things and becomes excessively fat. Otherwise, he is somewhat quick, considering his small size.

If Upchuck does not spit out something he eats, he will get very fat until he spits it out.

Original Series

 * Murk Upchuck first appeared in The Visitor, where Upchuck defeated Vilgax's Drone.
 * In Ben 4 Good Buddy, Upchuck chased the Road Crew.
 * In Ben 10 vs. the Negative 10 (Part 2), Upchuck defeated the Red Knight and Driscoll.
 * In Ben 10: Secret of The Omnitrix, Upchuck was defeated by Myaxx.

Alien Force

 * Perk Upchuck was introduced in Alien Force in War of the Worlds: Part 1, where he battled an army of DNAliens.
 * In Vengeance of Vilgax, Upchuck battled the wild Chromastone.
 * In In Charm's Way, Upchuck defeated Charmcaster's giant Mr. Smoothy.

Ultimate Alien

 * Perk Upchuck returned in Ultimate Alien in Duped, where Arrogant Ben uses him to battled Urian, but failed.
 * Murk Upchuck was re-unlocked in Ben 10,000 Returns by Ben 10,000.
 * In The Purge, Upchuck battled some Forever Knights.
 * In Heroes United, Upchuck ate the Alpha Nanite's container to transport it out of Rex's dimension.
 * In Inspector Number 13, Upchuck was used by Gwen to help rescue Ben.
 * In Night of the Living Nightmare, Upchuck was seen at the end of the episode confronting Albedo.

Omniverse

 * In Store 23, he was one of several aliens Ben was showcasing for Ben 23.
 * Upchuck appeared in Tummy Trouble where he was used to settle peace negotiations for the Gourmands.

Appearances
{{Scroll box
 * content====Ben 10===
 * The Visitor (first appearance)
 * Ben 10: Secret of The Omnitrix
 * Ben 4 Good Buddy
 * Ben 10 vs. the Negative 10 (Part 2)

Ben 10: Alien Force

 * War of the Worlds: Part 1 (first re-appearance since Original Series)
 * Vengeance of Vilgax: Part 2 (accidental transformation; selected alien was Humungousaur)
 * In Charm's Way

Ben 10: Ultimate Alien

 * Duped (first re-appearance)
 * The Purge (accidental transformation; selected alien was Lodestar)
 * Inspector Number 13 (used by Gwen)
 * Night of the Living Nightmare (Dream)

16 year old Ben

 * Store 23 (first re-appearance; cameo)
 * Tummy Trouble (x2)

Specials

 * Ben 10-Generator Rex: Heroes United}}

Ben 10: Protector of Earth
Upchuck is a playable alien character in Protector of Earth, he is unlockable with a cheat on the DS version.

Ben 10 Alien Force: Vilgax Attacks
Upchuck is a playable alien character in Vilgax Attacks, on the DS version to replace Cannonbolt.

Ben 10: Omniverse
Upchuck is a playable alien character in the game, he is an exclusive for the DS and 3DS version.

Trivia

 * Some of Upchuck's prototypes were used to create Spitter, Articguana, Sploot and Mot Snikrep.
 * Upchuck's name is a pun of the verb upchuck, which is a reference to both his ability and his body design being similar to that of a Woodchuck.
 * Upchuck has one similarity with Chromastone: both can absorb energy shots and send them back.
 * Upchuck was the first of five aliens in the Ben 10 series to be seen as an action figure before he appeared in the series. The other four are Ultimate Wildmutt, Eatle, Clockwork and Toepick.
 * Upchuck is one of four aliens who appear in all 4 series, the others being Cannonbolt, Diamondhead and Way Big.
 * Curiously, in all the 3 video games Upchuck has appeared in, he is playable only on the Nintendo DS and 3DS in Ben 10: Omniverse.
 * As seen in Tummy Trouble, Upchuck is so far the only alien able to switch between the two races of his sample's species.
 * Ben 23 calls Upchuck "Vomit Man".