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Species: Gourmand
Home planet: Peptos XI
Body type: Humanoid Frog
Abilities: Solid Matter Ingestion
Slime Spit
Enhanced Durability
1st appearance: {{{first-appearance}}}

Upchuck is the Codon Stream's DNA sample of a Gourmand from the planet Peptos XI.


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, neck and belly and crooked teeth. He also has a light-green tail.

In the original series, Upchuck wears 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 sequels, Upchuck just wears the Omnitrix and 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 on his face instead of three.

Powers and AbilitiesEdit

Upchuck has a very strong, adhesive tongue 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 can't consume ordinary earth foods. 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. He can also use the energy as an acid. Upchuck seems to be 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 he can spit out slime.

In Ben 10 vs. The Negative 10 Pt. 2, Upchuck was able to grab the sub-energy from Driscoll. The sub-energy gave Upchuck super speed. Afterward Upchuck dispersed it by firing the rest of the sub-energy into the sky from Mt. Rushmore, vaporizing the three faces (the fourth one was destroyed in an earlier battle with Vilgax).


Upchuck has a limit to how many big objects it can swallow at once. He is also slow when he eats a lot of things and becomes excessively fat. Otherwise, he is somewhat quick, considering his small size, but due to his body structure his speed is limited.

Ben 10, Alien Force and Ultimate AlienEdit

Ben 10 UltiVerseEdit

He will appear soon.The enhancements made to him with the Ultimatrix 2.0 are more powerful explosive loogie and stickier slime.


Ben 10Edit

Ben 10: Alien ForceEdit

Ben 10: Ultimate AlienEdit


Video GamesEdit

Ben 10: Protector of EarthEdit

Upchuck is used with a cheat on the DS version.

Ben 10 Alien Force: Vilgax AttacksEdit

Upchuck is on the DS version to replace Alien X instead of Cannonbolt.


  • Upchuck is the first alien to be unlocked by someone other than Ben.
  • Upchuck went through many design changes.
  • Upchuck is one of the five aliens to appear in all three series. The other four are Cannonbolt, Way Big, Ghostfreak and Diamondhead.
  • Some of Upchuck's prototypes were used to create Spitter, Articguana, Sploot and Mot Snikrep.
  • Upchuck is the second original alien to reappear in the series to not have the original voice actor, the first being Cannonbolt.
  • Not counting the non-canon episodes and the movies, Upchuck is the last alien used in the original series.
  • Upchuck has so far been only in DS games.
  • Upchuck's name is a pun of the verb upchuck which means to barf which is a reference to his ability.
  • It has been confirmed that Upchuck still has his 4 green tongues from the original series, but in the Ultimate Alien intro and War of The Worlds, you can see that he has a more human like tongue. However in The Purge, he has one, human like tongue, it could of been a mistake and should of been green and it was only 1 of the 4.
  • Upchuck has one similarity with Chromastone: both can absorb shots and send them back.
Ben 10: MEGA Alien
Alien X| AmpFibian| Armodrillo| Arcticguana| Atom| Benmummy| Benvicktor| Benwolf| Big Chill| Brainstorm| Buzzshock| Cannonbolt| ChamAlien| Clockwork| Colourless| Diamondhead| Ditto| Eatle| Echo Echo| Eye Guy| FuzzBall| Ghostfreak| Goop | Grey Matter| Heatblast| Hopefull| Humungousaur| Jury Rigg| Lodestar| Nanomech| NRG| Rath| Ripjaws| Spidermonkey| Spitter| Stickler| Stormfront| Swampfire| Shocksquatch| Terraspin| TriWuzzo| Upchuck| Upgrade| Water Hazard| Way Big| Wildmutt| XLR8
Additional Aliens
Headache | Snakepit | Toepick | Shellhead | Surprise Alien | Brainwave | Falconator | Organism | Unseen Alien
Re-Unlocked Aliens
Stinkfly | Fasttrack
Ultimate Forms
Ultimate Swampfire | Ultimate Big Chill | Ultimate Humongousaur | Ultimate Echo Echo | Ultimate Spidermonkey | Ultimate Cannonbolt | Ultimate Wildmutt | Ultimate Goop | Ultimate FuzzBall | Ultimate Hopefull | Ultimate Rath | Ultimate Ben | Ultimate Way Big
MEGA Forms
MEGA Rath | MEGA Spidermonkey | MEGA Cannonbolt