Pause the game and press Down(3), Up, Triangle, Up, Triangle, Up, Triangle, Up(3), Down, Square, Down, Square, Down, Square, Left, Triangle, Right, Square, Left, Triangle, Right, Square, R1 + L1. If you entered the code correctly, you will hear a sound. Note: This code only works in Campaign mode on the Easy difficulty, and will only remain in effect for the current level and will be disabled when the game is stopped or after the level is completed.

Pause the game and press R2, R1, Triangle, Square, Right, Down, Left, L1, L2, R2, R1, Triangle, Square, Right, Down, Left, L1, L2, R2, L2, L1, R1, Triangle, Left, Down, Square, R1 + L1. If you entered the code correctly, you will hear a sound. Note: This code only works in Campaign mode on the Easy difficulty, and will only remain in effect for the current level and will be disabled when the game is stopped or after the level is completed.

Pause the game and press Up(2), Down(2), Left, Right, Left, Right, Square, Triangle, R1 + L1. If you entered the code correctly, you will hear a sound. Note: This code only works in Campaign mode on the Easy difficulty, and will only remain in effect for the current level and will be disabled when the game is stopped or after the level is completed.

During an intermission sequence, press Circle, X, Square, Triangle, Circle, X, Square, Triangle, Circle, X, Square, Triangle to control the camera angle.

Before "Test Player" is reached during the ending sequence, hold L1 + L2 + R1 + R2 + Square + Triangle + Circle to control Wayne's LP-9999 VS. You can fly to the destroyed Akrid.

Successfully complete the game to unlock the Extreme difficulty setting.