Level Select
————
Pause, then hold Z and press
R, B, A, B, A, C-Up, C-Down, C-Left, C-Right, C-Up,
C-Down, C-Left, C-Right.
Bonus levels
————
Pause, then hold Z and press C-Down,
L, R, L, R, L, R, L, R, L, R.
Level Select
————
Pause, then hold Z and press
R, B, A, B, A, C-Up, C-Down, C-Left, C-Right, C-Up,
C-Down, C-Left, C-Right.
Bonus levels
————
Pause, then hold Z and press C-Down,
L, R, L, R, L, R, L, R, L, R.