The following codes must be entered at the Start screen after you do the ''Extra Options'' code:
Effect Code Big Head Mode Square, Circle, Circle, Square, Up, Square, Circle, Circle, Square, Triangle Big Headed Enemies Square, Circle, Circle, Square, Up, Square, Circle, Circle, Square, X Game Boy Mode X, X, Triangle, Triangle, Square, Square, Circle, Circle, Up, Down Level Select Left, Right, X, Triangle, Left, Up Nakomi Mode Up, Up, Down, Down, Left, Right, Left, Right, X, Circle Turbo Mode X, Square, Triangle, Circle, X, Square, Triangle, Circle, L2, R2
Contributed By: Mike Truitt.
Effect Code Extra Options At the Main Menu press Triangle, Square, Circle, Left, Square, Triangle, Square, Circle, Left, Square
Contributed By: KasketDarkfyre.
Effect Code Sepia-Tone Graphics Press Left 10 times
Contributed By: Chegg.
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