|Species|| 1/2 Tetramand|
|Body||Four-armed humanoid with wings|
|Powers and Abilities|
|Abilities|| Limited Flight|
|Voice Actor||Dee Bradley Baker|
|First Appearance||Dr. Animo and the Mutant Ray|
Stink Arms mostly resembled Four Arms with a few Stinkfly characteristics. Four Arms' eyes were replaced by Stinkfly's eye stalks. He also had Stinkfly's tail and wings. Stink Arms wore a shirt based on Stinkfly's suit and Four Arms's pants. Stink Arms wears the Omnitrix symbol on his face.
Powers and Abilities
Four Arms' high strength was weakened by Stinkfly's lesser strength. Stink Arms had Stinkfly's sharp tail.
Stink Arms' huge mass made it hard to fly. It also makes him very weak as Stink Arms was not able to lift Dr. Animo's mutant frog (which Fourarms could have easily done).
- Stink Arms can be created in one of Bandai's Ben 10 Games along with other fusions.
- Stink Arms is the first fusion alien in the Ben 10 series.
- Stink Arms cannot be accessed unless the faceplate of the Omnitrix is broken
- Stink Arms is the only fusion alien to not have a voice that sounds like both the aliens combined.