Upgrade is a Galvanic Mechamorph from the planet Galvan B.
Upgrade is mainly all black and green. The front of his body is all white mainly because of Bens T-shirt. The Omnitrix symbol is on his chest and he has one circle for an eye.
Upgrade has the ability to take over technology. He can fuse with any peice of technology and take control over it.
Upgrade first appears in the episode Permanent Retirement where he defeats a burgler.