34497a3fe0ef52949a1ba8e99894ed69.png This article belongs to the Classic Continuity

Is that all you got? I got snot made of stronger stuff than you! Don't feel bad, my snot is tough as the rest of me.

– Bullfrag to the Squid Monsters.[1]

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, 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

Bullfrag has powerful jumping abilities and is very agile.

Bullfrag's physique makes him stronger than an average Incursean. He also has impressive hand-to-hand combat abilities.[2]

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, as it can smash boxes.[3] 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.[4]

Bullfrag can inflate his chest to repel enemies and gain momentum to jump.[1]

Bullfrag has enhanced strength, as he was able to carry Bill Gacks in the air without any difficulty.[1]

Bullfrag is more durable than other Incurseans, as he can endure being kicked by a Tetramand.[3]

Bullfrag is capable of withstanding the vacuum of space, but he still needs to breathe to survive. Without an oxygen supply, Bullfrag is limited to holding his breath, as demonstrated by Attea.[5]

Although he has never trained himself to do so, Bullfrag can hold his breath underwater for four to seven hours thanks to his respirators.[DJW 1]


Bullfrag's tongue will hurt if it stretches too long.[4]

Bullfrag has feelings for Attea, which can distract him.[2] Although he thinks she is cute, he is not into her personality.[DJW 2]

Like all Incurseans, Bullfrag is weak to a strong smell, such as that of a Methanosian's swampy stench, as demonstrated with Attea and many Incursean soldiers.[6]

Bullfrag can be immobilized by a Necrofriggian's ice breath, as demonstrated with Milleous.[7]

Bullfrag is vulnerable to pressurized water blasts, such as those generated by an Orishan, as demonstrated by Attea.[5]

Bullfrag can be incapacitated by magic, as also demonstrated by Attea.[2]






Season 3
Season 5
Season 6
  • Catfight (x4; unintended transformation)
Season 7
Season 8

Video Games

In Ben 10: Omniverse 2

Ben 10: Omniverse 2

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

Upon unlocking his new Incursean transformation, Ben tries a few names such as "Crazy Legs" and "Aquattack" before settling on Bullfrag.

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", referencing his appearance, and "frag", which means to kill.


  • Derrick J. Wyatt came up with Bullfrag.[DJW 3] During production, he was supposed to look more like a typical Incursean.[DJW 4]
    • Originally, Bullfrag's sunglasses were part of his disguise to hide his green eyes. Because the crew liked them so much, they decided to make the sunglasses a permanent part of his appearance.[DJW 5]
  • Bullfrag is more muscular and developed than other Incurseans because most members of the species have very poor diets. Bullfrag is an example of an optimal Incursean.[MW 1]
  • Like most other Incurseans, Bullfrag speaks with a Brooklyn accent.
  • Bullfrag is Ben's most handsome alien.[DJW 6]
  • Bullfrag and Perk Upchuck are the only aliens to have been manually unlocked by entering a code into an Omnitrix.
    • Bullfrag is also one of four aliens to have been unlocked by Azmuth; the others being Way Big, Murk Upchuck, and Atomix.
  • 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.[2][3][MW 2]
    • When Ben blames the attraction on Bullfrag's DNA, it is similar to Albedo blaming his cravings for Chili Fries on Ben's DNA. Curiously, Gwen even made a reference to the similarity, claiming that it is the excuse all boys use.[2]
  • 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's design 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. However, the design is not a reference to it.[DJW 7]
    • Derrick J. Wyatt had previously designed the Soundwave from Transformers Animated who wore the same glasses, and these were based on 2000 AD's ABC Warriors.


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
Future Aliens SandboxShellheadSnakepit
Ultimate Aliens AlbedoArctiguanaBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Concept Fusion Aliens GravadactylXLRG
Other Aliens in Official Media AntigraviteslaBob the BlobCartoon Network AlienEon (Retconned)InvinciblePlantapocalypsePortalerRocksShadowmanSquidstrictorStretcheleo
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