H.E.D.Z. (Head Extreme Destruction Zone) for Windows

Get ready to battle your way through 20 different 3D asteroid worlds, facing off against 300 of the most unusual opponents you'll ever meet. In this original game, everyone's after the same thing: each other's heads. A good head on your shoulders gives you good combat powers, and if you win a battle, you get (you guessed it) your opponent's head, and acquire their special skills. Move from arena to arena and fight to collect heads--without losing yours.