|Species|| ½ Tetramand|
|Body||Four-Armed Humanoid with Wings|
|Powers and Abilities|
|Abilities|| Limited Flight|
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 wears Four Arms's suit. Stink Arms wears the Omnitrix symbol on his belt.
Powers and Abilities
Four Arms' high strength was weakened by Stinkfly's lesser strength. Stink Arms had Stinkfly's sharp tail. He is still durable and has limited flight.
Stink Arms' huge mass made it hard to fly. He is also much weaker than Four Arms.
- Stink Arms is the first fusion alien in the series.