Grey Matter is the Omnitrix’s DNA sample of a Galvan from the planet Galvan Prime.

Height - 6 Inches Body - Humanoid

Super Intelligence - Grey Matter possesses an above genius-level intellect, making him the smartest alien in the Omnitrix. He is able to solve complicated problems in seconds, have intense concentration for analyzation and technological reconfigurations.

Precise Recall - He recall any information that Ben may have even glimpsed throughout his life, even learning things Ben never knew about in moments.

Small Size - He is 6 inches tall, so his tiny body allows him to jump really high, squeeze into small spaces and can climb walls due to microscopic pads on his skin.

Underwater Breathing - He is able to breathe underwater through his gills.

Longevity - Being a Galvan, Grey Matter's life span allows him to live at least 2000 years more than humans.

Small Size - Whilst he is one of the most intelligent creatures in the Universe, he’s still too small for combat against much larger opponents, making him unsuitable for physical battle, so he must outsmart his enemies in a fight.

Fragile Body - Grey Matter's body is not very durable, being weak to even the basic of attacks from most species larger than him.