Hidden car
 
 Choose any car, then hold R1 + R2 until the race begins.
 
 Buggy
 
 Choose any car, then hold R1 until the race begins.
 
 Truck
 
 Choose any car, then hold L1 until the race begins.
 
 UFO
 
 At the car selection screen, hold R1 + R2 + L1 + L2 and choose a car.
 Keep those buttons held and press X at the transmission selection
 screen. Then, hold Triangle until the race begins.
 
 Change car colors
 
 At the car selection screen, press Square.
 
 Reversed tracks
 
 Once circuit mode has been completed, an option for forward and
 reversed tracks will be selectable.
 
 Stunt mode
 
 Once tournament mode has been completed, you will be able to access a
 stunt mode option on the Golden Gate track.
 
 Bonus cars
 
 Complete one of the following goals to unlock the corresponding bonus
 car: 
 
 Muscle car
 
 Find 4 keys in any track. Then at the transmission selection screen,
 press Down. 
 
 Hot rod
 
 Find 8 more keys in any of the other tracks. Then at the transmission
 selection screen, press Down.
 
 City bus
 
 Find all 16 keys. Then at the transmission selection screen, press
 Down. 
 
 Police car
 
 Complete tournament mode. Then at the transmission selection screen,
 press Down. 
 
 Taxi cab
 
 Complete circut mode. Then at the transmission selection screen,
 press Down. 
 
  Game Shark Codez:
 
        
  Infinite Time                                  
  800B2814 001E
        
  Always Place First                             
  800B3388 0000
        
  Max Speed                                      
  80101218 0329
        
  Car Modifier                                   
  800B2738 000?
        
  Quantity Digits to Accompany Car Modifier Code 
        
  0 - Beginner Car                               
  1 - Advanced Car                               
  2 - Expert Car                                 
  3 - Extreme Car                                
  4 - Secret Car A (Bus)                         
  5 - Secret Car B                               
  6 - Secret Car C (Beetle)                      
  7 - Secret Car D