Xbox 360: players 1-4; co-op 2-10; 500 KB to save game; HDTV 720p/1080i/1080p; in-game Dolby Digital; custom soundtracks.
Xbox Live: online multiplayer 2-10; co-op 2-10; game content download; leaderboards. Paid subscription required for online multiplayer; some features and downloads require additional storage, hardware, and/or fees.