Pause the game and enter the following cheat cdes:
Slower game speed: L1, L2, R1, R2, Square, Circle.
Faster game speed: L1, L2, R1, R2, Square(2).
Normal game speed: L1, L2, R1, R2, Circle(2).
$1 million: L2, Square, R1, Circle, R1, L1, Circle, L2, Square, R2, Square, R1.