34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity

Bullfrag is the Omnitrix's DNA sample of an Incursean from an unknown and destroyed planet.


Bullfrag is a humanoid frog-like alien with three-fingered hands and two-toed feet. He is, however, considerably taller and more muscular and paler-skinned than a typical Incursean and has a more defined jawline.

In The Frogs of War: Part 2, Bullfrag wore a typical black-and-purple Incursean uniform as a disguise. He also wore an Incursean helmet and purple sunglasses.

As of Bengeance Is Mine, Bullfrag wears green sunglasses, a black bodysuit with a green stripe down the middle, fingerless black gloves, toeless black boots with green cuffs above them, and a green belt with a white buckle.

Bullfrag wears the Omnitrix symbol on his upper chest, which was hidden under his suit during The Frogs of War: Part 2.

Powers and Abilities

  • Long Tongue
  • Chest Inflation
  • Enhanced Strength

Bullfrag has powerful jumping abilities, and is very agile. 

Bullfrag's physique makes him stronger and more durable than an average Incursean. He also has impressive hand-to-hand combat abilities.[1]

Bullfrag possesses a long, sticky and prehensile tongue, which he can use as a grappling line or to hit a distant target. It is also very strong, able to smash boxes. Its tensile strength is high enough to slow down the Billions Tower sign to a near standstill after falling from the top of a skyscraper.[2]

Bullfrag can inflate his chest to repel enemies and gain momentum to jump.[3]

Bullfrag has enhanced strength, as he was able to carry Bill Gacks in the air without any difficulty.[3]


VM (301)

Overstretched Tongue

Like all Incurseans, Bullfrag is weak to a strong smell.[4]

Bullfrag's tongue hurts if it stretches too long.[2]




Ben 10: Omniverse

Season 3

Season 5

Season 6

  • Catfight (x4; unintended transformation)

Season 7

Season 8

Video Games

OV2 Bullfrag

In Ben 10: Omniverse 2

Ben 10: Omniverse 2

Being the main alien, Bullfrag is a playable alien in the game.

Naming and Translations

Language Name Origin
Bulgarian Булфраг From the original English name
Chinese 牛蛙 From (Niú), bull, and (Wā), frog
French Crapauteur From crapeau, bullfrog, and sauteur-, hopper
German Bullfrosch From Bullenfrosch, bullfrog
Greek Βατραχολοθρευτής From βάτραχος, frog, and εξολοθρευτής, annihilator
Hungarian Repeszgránát From repeszgránát, fragmentation grenade
Polish Bykżab From byk, bull and żaba, frog
Portuguese (Br) Bullfrag From the original English name
Romanian Amfibizorul from -amfi, a prefix for amphibian, and bizon, bull
Russian Бульфраг From the original English name
Turkish Bulfrag From the original English name


Bullfrag's name is a play on "bullfrog" and "frag", which means to annihilate.


  • Bullfrag and Perk Upchuck are the only aliens to have been manually unlocked by entering a code into the original and current Omnitrices.
  • Bullfrag is more muscular and developed than other Incurseans because most members of the species have very poor diets, and Bullfrag is an example of an optimal Incursean.[MW 1]
  • Bullfrag would originally only wear sunglasses to hide his green eyes, but because the crew liked them so much, they decided to keep Bullfrag always wearing sunglasses.[DJW 1]
  • Like frogs, Bullfrag makes a croaking sound after inflating his chest.
  • While Bullfrag is attracted to Attea, the latter has a strong crush on Bullfrag as well.[1][5][MW 2]
    • Ben blames the attraction on Bullfrag's DNA, similar to Albedo blaming his cravings for Chili Fries on Ben's DNA.
      • Gwen made a reference to this, claiming that that's the excuse all boys use.
  • In Ben 10: Omniverse 2, Ben tries a few names, such as "Crazy Legs" and "Aquattack" before settling on Bullfrag.
  • From Arc 4 of Omniverse onwards, Bullfrag replaces Crashhopper in the opening intro of the show, specifically in the part where the latter originally appeared alongside ShocksquatchWay Big, and Bloxx.
  • Bullfrag's voice and mannerisms are based on Sylvester Stallone.
  • Bullfrag also seems similar to Rash from Battletoads, as both were amphibian superheroes that wore sunglasses.
  • Bullfrag's sunglasses greatly resemble Kamina's sunglasses from Gurren Lagann.


Crew Statements

Matt Wayne

Derrick J. Wyatt

Introduced in Ben 10 ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEye GuyFour ArmsFrankenstrikeGhostfreakGrey MatterHeatblastRipjawsSnare-ohSpitterStinkflyUpchuckUpgradeWay BigWildmuttWildvineXLR8
Introduced in Alien Force Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetrayLodestarNanomechRathSpidermonkeySwampfire
Introduced in Ultimate Alien AmpFibianArmodrilloChamalienClockworkEatleFasttrackJuryriggNRGShocksquatchTerraspinWater Hazard
Introduced in Omniverse AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Ultimate Aliens Ultimate AlbedoUltimate ArctiguanaUltimate Big ChillUltimate CannonboltUltimate Echo EchoUltimate GravattackUltimate HumungousaurUltimate RathUltimate SpidermonkeyUltimate SwampfireUltimate Way BigUltimate Wildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Unseen Aliens Decagon VreedleRocksSquidstrictorVentrilosquid
Future Aliens SandboxShellheadSnakepit
Retconned Eon
Non-Canon Cartoon Network AlienPortalerAntigraviteslaBob the BlobPlantapocalypseThriller Whale

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