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Now I can fly and kick butt at the same time! Cool!

– Stink Arms getting wrongfully enthusiastic.

Stink Arms is the combination of Four Arms and Stinkfly's DNA. He cannot be accessed unless the faceplate of the Omnitrix is broken or by using the Biomnitrix.[note 1]


Stink Arms mostly resembled Four Arms with a few Stinkfly characteristics. Four Arms' eyes were replaced by Stinkfly's eyestalks, and he had Stinkfly's tail and wings.

Stink Arms wore a shirt based on Stinkfly's suit and Four Arms' pants, and also wore the Omnitrix symbol on his face much like Stinkfly.

Powers and Abilities

Being part-Tetramand, Stink Arms has enhanced strength, enough to send the Mutant Frog flying by hitting it with a metal alligator from an establishment. He is also as durable as Four Arms.

Being part-Lepidopterran, Stink Arms has a sharp tail similar to Stinkfly's. He also possesses limited flight.


Stink Arms' huge mass makes it hard for him to fly properly.

Despite his enhanced strength, Stink Arms is not as strong as Four Arms because his strength level is affected by that of Stinkfly.


Ben 10


Ben 10

Season 2

Naming and Translations

Language Name Origin
Polish Muchoręki From mucha, fly and ręce, hand
Portuguese (Br) Insectobraços From Insecto, insect; and braço, arm
Romanian Stink Braţe From stink, and braţe, hands
Russian Силач и Жук From From силач, strong man and и, and, and жук, beetle
Spanish (HA) Insectobrazos From insecto, insect; and brazo, arm
Turkish Pul Kol
Kokuşmuş Kollar
From pul kol, stamp sleeve
From kokuşmuş, rotten and kollar, arms


  • Stink Arms was designed by Thomas Perkins.[TP 1]
  • Stink Arms can be created in one of Bandai's Ben 10 Games, DNA Lab, along with many other fusions. He is the only fusion from the show to appear in this game.
  • Stink Arms is the first fusion alien in the series.
  • Stink Arms' voice is the same as Stinkfly's.


  1. Diamond Matter, Heat Jaws, and Stink Arms are three fusions which were originally created by a broken, prototype Omnitrix. All three fusions are possible with the Biomnitrix, however, they might differ in aspects such as appearance, powers and weaknesses due to the fact that there's no evidence to support the idea that the broken prototype Omnitrix creates fusions the same way as the Biomnitrix.


Thomas Perkins

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 AlbedoArctiguanaBenBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Concept Fusion Aliens GravadactylXLRG
Other Aliens in Official Media 10/10/10 Box AliensAntigraviteslaBob the BlobCartoon Network AlienEon (Retconned)MoyoInvinciblePlantapocalypsePortalerRocksShadowmanSquidstrictorStretcheleo