Local Multiplayer 2-4, Xbox LIVE Multiplayer 1-8, HD (High Definition). The ultimate battle has begun… Pirates, Ninjas, Robots, and Zombies battle across 4 unique arenas with one goal in mind... knock each other senseless with a rubber ball! Perform powerful special abilities, melee attacks, and multiple throws to eliminate your opponents. Play through each team’s unique story mode to learn the truth behind their rivalry and then take your skills online and compete in up to 8-player, competitive matches over Xbox LIVE! Which side are you on? There are no refunds for this item. For more information, see www.xbox.com/live/accounts.