|Home World||Galvan Prime|
|Powers and Abilities|
|Abilities|| Enhanced Intelligence|
Grey Matter is a greyish lavender-skinned, frog-like, bipedal alien that is only four inches tall with large purple eyes, which have rectangular pupils and horizontal eyelids. He has rotten spots on his body, small purple tendrils which are cut at the tips came at random places on his head. His teeth are yellow. The tips of his fingers are completely eaten away showing bone. He wears a purple & black uniform similar to the straitjacket Neonzarro wears, with buckles around the knee area.
He wears the Omnitrix symbol on his back.
Powers & Abilities
Has enhanced intelligence.
Thanks to his small size, can get into very small areas.
Can climb on walls.
Can breathe underwater.
Has sharp teeth.
Has a prehensile tongue.
His small size gives him great disadvantages.
Is the natural prey of Omnivoracious.
- Due to the fact Neonzarro's brain is rotten, his version of Grey Matter is smart as Neon Prime.