Description: [Xbox Live Arcade] Discs of Tron, a follow-up 1983 arcade game, enables players to fight Sark, the defender of Master Control Program, in one-on-one battles taking place in three-dimensional futuristic arenas. Players must move between platforms while throwing energy-charged discs at Sark and deflecting oncoming discs to avoid being "derezzed." The game includes the original version as well as an enhanced version with new graphics and audio features. Through Xbox LIVE Arcade, players can also compete in both games against another player in four online modes. [Disney Interactive Studios]