Level Select

Insert Disc 2 while on levels 1 or 2 or choose to restart levels 1 or 2 if you are currently on levels 3 or 4. The "Remove CD 2 Insert CD 1" message will appear. Press:

A, B, Right, A, C, A, Down, Right, B, A.

Bonus FMV Sequence

Intentionally lose the game. Wait for the credits to appear and quickly press:

C, B, A in a sweeping motion, then press Start.