Play as Yuko – While holding L and R on controller 1, reset the game and continue to hold down L and R until the game starts.
Easy Mode – On the Start Game and Options selection screen, select options and press LEFT, LEFT, RIGHT, RIGHT, B, B, Y, Y and then enter options and you can now select EASY MODE.
Level / Stage Select – Wait for PUSH START BUTTON to appear on the title screen then press UP, DOWN, LEFT, RIGHT, UP, DOWN, LEFT, RIGHT, UP, DOWN, LEFT, RIGHT, SELECT, SELECT, Y, B, START.