All gold medals:
Press Down, Up, Left, Right, Triangle, X, Square, Circle at the title screen. The phrase "Cheater's Never Prosper" will be spoken and text will appear to confirm correct code entry.

Level select:
Press Down, Up, Right, Left, Triangle, X, Square, Circle at the title screen. The phrase "Cheater's Never Prosper" will be spoken and text will appear to confirm correct code entry.

Extra points:
Press L2, R2, L1, R1, Triangle, Circle, X, Square at the title screen. The phrase "Cheater's Never Prosper" will be spoken and text will appear to confirm correct code entry.

View ending sequence:
Press Up, Down, Left, Left, X, Square, Triangle, Circle at the title screen. The phrase "Cheater's Never Prosper" will be spoken and text will appear to confirm correct code entry.

Long name:
Press Up, Down, Left, Right, Triangle, X, Square, Circle at the title screen. The phrase "Cheater's Never Prosper" will be spoken and text will appear to confirm correct code entry.