Successfully complete the game with Master Itazura to unlock Cosmi Sr. in versus mode.
Successfully complete the Bioland level to unlock Daio in versus mode.
Successfully complete the Casinoland level to unlock Manitron in versus mode.
Successfully complete the Horrorland level to unlock Majinai in versus mode.
Successfully complete the Pirateland level to unlock Kurione in versus mode.
Successfully complete the Westernland level to unlock Dangun in versus mode.
Successfully complete the Spaceland level to unlock Chowlow in versus mode.
Successfully complete a level to unlock the corresponding level in versus mode.
Successfully complete the Tombland level to unlock Banzai in versus mode.
Successfully complete the game on the normal difficulty setting with an "A" rank to unlock the hard difficulty setting.