Phantasy Star Online Episode I & II

Phantasy Star Online Episode I & II is a video game released for the Nintendo GameCube and Xbox. An online hack and slash RPG, its focus is online gameplay rather than storyline. Offline mode is also available, for single player and multiplayer. Multiplayer split-screen mode can be played with up to 4-players, though the framerate and visibility range is much lower than offline single-player and online modes. Playing offline on Xbox requires an active Xbox Live Silver account. Check Phantasy Star Online on "See also" for more details.

Improvements and additions not in the Dreamcast and PC versions of Phantasy Star Online
One of the most noticeable changes is that this installment adds 5 new areas to explore under Episode II: Temple, Spaceship, Central Control Area (consisting of the Control Area, Jungle, Seaside and Mountain), Seabed, and Control Tower (which is available on Online mode only, or in offline Episode I and II Plus quests). This installment also adds 3 new character class/race combinations, many new items, and some added cheat protection (however, cheats and glitches were still found and exploited, rarely being addressed by Sonic Team).