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  Upchuck is the Omnitrix's DNA samples of the Perk and Murk races of Gourmand from the destroyed planet Peptos XI and currently Peptos XII.[1]


Ben as Perk Upchuck

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 a crooked teeth overbite. He has whisker like lines on his face. He also has a green tail.

In the original series, Perk 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 right hand.

In Omniverse, 16 year old Perk Upchuck closely resembles his 11 year old form but without clothes, and his eyes are green rather than white and wears the Omnitrix on his stomach.

11 year old Ben as Perk 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 now has bare feet with short claws.

Ben as Murk Upchuck

Murk Upchuck has 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 and green. He also has whisker like lines. His teeth are now more aligned with visibly sharp canine teeth. His tail is short and straightened, as opposed to Perk Upchuck's curled tail. He wore the Omnitrix/Ultimatrix symbol on his stomach.

In Heroes United, Murk Upchuck's black stripes 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, Murk Upchuck resembles his previous 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 in the shape of an underbite. The markings on his face are also thinner and contained by the face, no longer spanning the head.

Mad Ben as Perk Upchuck

Mad Ben as Perk Upchuck has skin coloring that looks more like that of a Murk Gourmand. His teeth are also mirrored. He wears a black helmet with a spike and orange glasses on it and spiked shoulder pads that are connected. He has orange bandages around his wrists. The spikes on the pads are orange. The strap connecting the pads goes around the Omnitrix, which is on his chest. His eyes and Omnitrix are orange.

Powers and Abilities

  • Perk Upchuck's stretchable tongues
  • Upchuck swallowing Crabdozer
  • Perk Upchuck spitting out acid
Both Upchucks have four very strong, adhesive tongues that can stretch to great lengths, allowing them to latch onto large objects and reel them in with relative ease.

Both Upchucks' mouths can stretch, allowing them to swallow objects larger than themselves. They are connected with a trans-space bladder dimension where they store all the "food" they eat. He is both connected to the gourmand species and sense any danger to his people through his stomach.

By breathing air out of their mouths, both Upchucks are able to fly.

The items ingested are converted into explosive balls of liquids that can be expelled with great accuracy. Perk Upchuck can also make them curve, like a boomerang, shuriken, or frisbee. Murk Upchuck hasn't shown this.

Perk 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.

Both Upchucks can eat and spit out energy, such as lasers, in the same way he eats and spits out acid matter. 

In Duped, it is shown that Murk Upchuck can spit out slime. Perk Upchuck hasn't displayed this.

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


EvEnc (451)

Perk Upchuck with full cheeks

Both Upchucks have a limit to how many big objects they can swallow at once.

Both Upchucks are slow when they eat a lot of things and become excessively fat. Otherwise, they are somewhat quick, considering their small size.

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

In Ben 4 Good Buddy, it is revealed that Perk Upchuck cannot consume Earth food, while Murk Upchuck is shown able to do in In Charm's Way.

As revealed in A Fistful of Brains, Perk Upchuck cannot swallow Ultimate Albedo's energy beams.






16 year old Ben
11 year old Ben
Mad Ben




  • Galactic Champions
  • Saving Sparksville
  • The Alien Device
  • The Mystery of the Mayan Sword
  • Upchuck Unleashed

Video Games

  • In Protector of Earth
  • In Vilgax Attacks
  • In Ben 10 : Omniverse

Ben 10: Protector of Earth

Perk Upchuck is a playable alien character in Protector of Earth, he is unlockable with a cheat on the DS version. He deals heavy damage to regular enemies and mini-bosses, but not to boss enemies.

Ben 10 Alien Force: Vilgax Attacks

Murk 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.

Ben 10: Omniverse 2

  • Upchuck is a playable alien character in the game (only on 3DS).

Naming and Translations

Language Name Origin
Bulgarian Ъпчък Bulgarian audible version from upchuck
Chinese 恶爆蛙 From (É), evil, (Bào), burst, and (Wā), frog
Croatian Žderko From žderko, eater
Dutch Opslok From opslok, swallower
French Gobe-Tout From gober, swallow whole, and tout, everything
German Spucknick From spucken, spitting and sputnick
Greek Πράσινος Εμετός From пράσινος, green and εμετός, vomit
Hungarian Böffencs
From böffencs, puking
From bendő, rumen
Italian Vomito From vomito, vomit
Norwegian Oppkast From opp, up, and kast, throw
Polish Apczak Polish audible version from upchuck
Portuguese (Br) Glutão From glutão, glutton
Russian Блевака From блевака, spew
Serbian Žderko From žderko, eater
Spanish (HA) Upchuck From the original English name
Spanish (Spain) Vomitón From vomitar, barfing
Turkish Kusmuk From kusmuk, vomit


Upchuck's name is a pun of the verb upchuck which means to vomit. This is a reference to both his ability and his body design being similar to that of a woodchuck.


  • Upchuck doesn't have a natural predator because his species is at the top of the food chain.[2]
  • Some of Perk Upchuck's prototypes were used to create Spitter, Arctiguana, Sploot and Mot Snikrep.
  • As seen in Tummy Trouble, Upchuck is able to switch between the two races of his species.[3]
  • Murk Upchuck is the first alien in Alien Force to not have the Omnitrix on his chest; instead, the symbol was on his stomach.


See Also

Ben 10 Aliens
Introduced in Ben 10
ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEye GuyFour ArmsFrankenstrikeGhostfreakGrey MatterHeatblastRipjawsSnare-ohStinkflyUpchuckUpgradeWay BigWildmuttWildvineXLR8
Introduced in Ben 10: Alien Force Introduced in Ben 10: Alien Swarm
Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetrayLodestarRathSpidermonkeySwampfire Nanomech
Introduced in Ben 10: Ultimate Alien Introduced in Heroes United
AmpFibianArmodrilloChamAlienClockworkEatleFasttrackJury RiggNRGTerraspinWater Hazard Shocksquatch
Introduced in Ben 10: Omniverse
AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Ultimate Forms
Big ChillCannonboltEcho EchoHumungousaurSpidermonkeySwampfireWay BigWildmutt
Future Aliens Fusion Aliens See Also
SandboxShellheadSnakepitSpitter Diamond MatterHeat JawsStink Arms Decagon VreedleRocksSquidstrictorThriller WhaleVentrilosquid
PortalerAntigraviteslaBob the BlobPlantapocalypse

Start a Discussion Discussions about Upchuck

  • Upchuck DS exclusive

    4 messages
    • I really do wish that Cannonbolt was on VA DS instead of Upchuck. 
    • Ikr most of upchuck's moves and combos were rlly borring.
  • Articgwana VS. Spitter Vs. Upchuck Vs. Buzzshock

    17 messages
    • Upchuck does not seem to be able to eat living things, maybe because the bladder dimension seems to reject it causing him discomfort.  In Ben...
    • spitter and upchuck's powers are ecquals, but upchuck can win. he have to eat a rock or more rocks and blast from his mouth to def...

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