Hidden music track
Press Select, Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right at the main menu. A hidden hip hop song by Motley will be unlocked.
Hidden skin 1
Press Select, Left, Right, Left, Right, Left, Right, Left, Right, Left, Right, Left, Right at the main menu.
Hidden skin 2
Press Select, Left(2), Right(2), Left(2), Right(2), Left(2), Right(2) at the main menu.
Hidden skin 3
Press Select, Left(3), Right(3), Left(3), Right(3) at the main menu.
Hidden skin 4
Press Select, Left(4), Right(4), Left(4) at the main menu.
Hidden music track...