hmm, they could make a FIRST game, and it would be a new one every year! and some of the FIRST matches were a lot more exciting than battlebots matches.
BattleBots will have a game by THQ for Gamecube, PS2, and the X-box. I checked out the beta version at Battlebots and it seemed really cool. It has a physics engine and will allow you to make your own robot, win matches, upgrade/repair, etc.