Local Multiplayer 2, Xbox LIVE Multiplayer 2-4, System Link 2-4, HD (High Definition). Purchase the full version of ROCKET BOWL and get rolling on all 10 out-of-this-world courses. Compete in tournaments, challenge your friends in multiplayer, test your skill in mini-games and more. You’re not just bowling… you’re ROCKET BOWLING! This game requires the Xbox 360 hard drive or the 512MB Memory Unit for storage. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.