There are different options that you are able to play on...Campaign option lets you beat bosses in order to unlock more characters, weapons and levels. Deathmatch enables you to customize your own game, creating your own teams, setting and rules so that you can fight in melee type battles. Lastly, survival in which you kill as many enemies as possible and then submit your score. Use the arrow keys to move, jump and block while using the Z and X keys to fight.