P1: W and S to move, D to shoot P2: Up and Down arrow to move, left arrow to shoot. Each time you get hit with a bullet, you lose a life. First-person to lose all their lives loses.
THIS TOOK ME LIKE TWO HOURS GTEXRWACVBYLIUDHUITDTURDYSITYYSUI thank goodness for the reshape tool. Anyway, shrinking the tanks and bullets took away the full effect, so there are the original (big) ones in the sprites.