What are some good cooperative multiplayer games on DC? Sure there are tons of multiplayer fighters, racers, and sports games, but these involve you playing against your friends with one winner and one or more losers - and quite frankly, if you keep beating your friends relentlessly because you are the only one with any experience on a dreamcast game, chances are they won't want to play with you after awhile ;)

So far I can think of Gauntlet Legends, Zero Gunner, and Ikaruga as good examples of cooperative multiplayer games.

I guess all of the multiplayer shmups count too: Gigawing 1+2, Mars Matrix, Under Defeat. And that game, Expendable/Millenium Soldier.