Official site, with features, information on equipment and characters, cheat codes to unlock levels, artwork, and music. Requires Flash.

Covers controls, characters, weapons, enemies, hints, walkthrough, bounties, hidden items, and cheat codes.

Information on the GameCube version, including review, news, screen shots, movies, and cheat codes.

Cheats, screen shots, movies, review, and news for the PlayStation 2 version.