I know, you've never heard of it. Well, back in the day it was a sci-fi, arena fighting game. It had multiplayer. Each player selected a creature (called a "morph") and gene moded it, strapped on some weapons and tried to wreak havoc on the other morphs. Kudos to the winner.
EA should really consider doing a console update for this. In fact I wonder who actually owns the rights to it.
If you don't mind straying into grey legal territory it can still be found in the wild web for play on a C64 emulator like WinVICE.