Pause gameplay and press L1, L2, R1, R2, Square, Square.
Fast Game Speed
Pause gameplay and press L1, L2, R1, R2, Square, Square.
Ford Explorer Sport Track
Press X, Square, X, Triangle, X, O, R1, L1, R1, L2, R1, R2, R1, L1 at the start screen.
Hint: Hidden Money Amounts
All hidden money amounts vary depending on how much the race is worth.
Motocross: Hidden Track
When you get to checkpoint 11, drive straight over the hill in front of it. Once over it you will find a small circle track.
Normal Game Speed
Pause gameplay and press L1, L2, R1, R2, Circle, Circle.
Restricted Area: Hidden Money
Go straight when you pass through checkpoint 5. After a little driving you will reach an aircraft hangar with a Jet Inside. In the corner of the hangar is a box of cash.
Slow Game Speed
Pause gameplay and press L1, L2, R1, R2, Square, Circle.