Mario Tennis: Revoution is an upcoming Mario sports game for the Nintendo Wii. It is the sequel to Mario Power Tennis on the Nintendo GameCube. It is set to release in February 2011. So far, it is has been confirmed that there will in fact be online connectivity, and that the game will support Wii Motion Plus. The ESRB Rating is E for Everyone, for mild cartoon violence and comic mischief. Up to four players can join in simultaneously.