Play as Baby Luigi:
     Successfully complete challenge mode as Yoshi.

Play as Dixie Kong:
     Successfully complete challenge mode as Donkey Kong.

Play as Hammer Bro.:
     Successfully complete challenge mode as Bowser.

Play as Monty Mole:
     Successfully complete challenge mode as Mario.

Play as Petey Piranha:
     Successfully complete challenge mode as Wario.

Play as Toadette:
     Successfully complete challenge mode as Peach.

Play as Bowser:
     Successfully complete challenge mode under the Special difficulty
setting.

Koopa Castle stadium:
     Successfully complete challenge.

Coin Derby mini game:
     Successfully complete challenge mode.

Star Dash mini-game:
     Complete all six mini-games under the Star difficulty setting.