Single Player, Xbox LIVE Multiplayer 1-2. Transform the marbleball with metal, electric and lighter-than-air properties to solve 3D puzzles based on real-world physics in the quickest time. More than 30 challenging levels! Includes single-player, co-op and competitive multiplayer courses! Unlock the full game now for more ball rollin' fun! There are no refunds for this item. For more information, see www.xbox.com/live/accounts.