Dragon Ball Sparking Zero, like the budokai tenkaichi series, doesn't have native cooperative play. However, Sparking Zero was blessed with native remote play together support. As it turns out in a 1P vs COM fight, the other controller inputs of remote play also control the player team. With a little verbal coordination and gentleman agreement to only play when your assigned character is active, you can turn Sparking Zero into a quite fun cooperative Dragon Ball game.

(Note: So far we only know that this works with host controller and remote play #2 controller, will update when we have tried with more friends or comments validate more than 2 players.)