Single Player, Local Multiplayer 2-4, HD (High Definition). Upgrade now, and quench that aching thirst for more intense platformer action! The full version features more than 400 levels, a custom level editor so you can build your own challenges and share them with friends, access to leaderboards, achievements, the ability to upload your high-score runs, several delicious flavors of multiplayer, several new enemies, and the ultimate test of your amazing ninja skill. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.