Groove Adventure Rave: Hikari to Yami no Daikessen 2 Cheats

Random opponent:
Select training or versus mode, then press Select at the character selection screen.

Fight as Doryu:
Finish the game with all default characters under the normal difficulty setting.

Fight as Gale:
Finish the game with all default characters under the normal difficulty setting.

Fight as King:
Finish the game with all default characters under the normal difficulty setting.

Fight as Lucia:
Finish the board game.

Fight as Ogre:
Finish the game with all default characters under the normal difficulty setting.

Expert mode:
Finish the board game.