Cheat codes
Enter the following codes at the Main Menu to unlock extra options in the Cheat Menu:

Long Suspension	R2, L2, R1, R2, L2, L1, R2, R2, L2, L2, L1, R2, R1
Mini-Cars	R1, R2, R1, R2, L1, L2, R1, R2, L1, R1, L2, L2, L2
No Damage	L2, L2, R2, R2, L2, R2, L2, L1, R2, R1, L2, L1, L1
No Police	L1, L2, R1, R1, R1, R1, L2, L2, R2, R2, L1, L1, R2
Rear Wheel Steering	R1, R1, R1, R2, L2, R1, R2, L2, L1, R2, R1, L2, L1
Upside-Down Screen	R2, R2, R1, L2, L1, R2, L2, L1, R2, R2, L2, R2, L1
View Credits	L1, L2, R1, R2, L1, R1, R2, L2, R1, R2, L1, L2, R1

Unlock All Cheats
To unlock All Cheats beat Undercover Mode once.