Bonus vehicles
 
 Unlock all 320 cars in the game. Then the Pac-Man character, which
 can run at 252 km/h, and the Sony Eat'em Up car will be selectable in
 time attack mode. 
 
 Extra Trial mode
 
 Successfully complete Gran Prix mode.
 
 Bonus tracks, cars, and music (Ridge Racer High Spec Demo)
 
 Finish in first place in all time trial tracks and beat the time in
 all time attack tracks to unlock four reversed tracks, eight new
 cars, and a bonus song. This will also unlock another ending after
 the replay and other music. 
 
 Rage Racer information
 
 Use a memory card with a saved game file from Rage Racer to place
 your old team information on the cars in Ridge Racer Type 4.
 
 Four player mode
 
 Connect two PlayStations via a link cable. Then a "Link Battle" mode
 that allows a simultaneous four player game will appear.
 
 Game music
 
 Play track two and higher of either game disc in an audio CD player
 to hear music from the game.
 
  Game Shark Codez:
 
                             North American Version
 
       
  Unlock Extra Trial Mode                          
  800F3B24 0001
       
  Complete Extra Trial Mode                        
  800F3B2C 0101
  800F3B2E 0101
       
  Infinite Tries                                   
  800AD698 0303
       
  Speed Modifier                                   
  D00F3BEA 0100
  800AC288 ????
       
  Start on Last Race of Season [Note]              
  D00F3BEA 0004
  800AD6A6 0700
       
  Lap 1 Time is 0:00:00                            
  800F4D58 0000
       
  Lap 2 Time is 0:00:00                            
  800F4D5C 0000
       
  Lap 3 Time is 0:00:00                            
  800F4D60 0000
       
  Lap 4 Time is 0:00:00                            
  800F4D64 0000
       
  Lap 5 Time is 0:00:00                            
  800F4D68 0000
       
  Lap 6 Time is 0:00:00                            
  800F4D6C 0000
       
  Unlock All Tracks                                
  800F3ADC FFFF
  300F3B24 0001
  800F3B28 0101
  800F3B2C 0101
       
  Unlock All Cars (GS 2.2 or Higher Needed)        
  50002002 0000
  800F3AE0 FFFF
       
  Unlock All Team DRT Cars                         
  800F3AE0 FFFF
  800F3AE2 FFFF
  800F3AE4 FFFF
  800F3AE6 FFFF
  800F3AE8 FFFF
  800F3AEA FFFF
  800F3AEC FFFF
  800F3AEE FFFF
       
  Unlock All Team MMM Cars                         
  800F3AF0 FFFF
  800F3AF2 FFFF
  800F3AF4 FFFF
  800F3AF6 FFFF
  800F3AF8 FFFF
  800F3AFA FFFF
  800F3AFC FFFF
  800F3AFE FFFF
       
  Unlock All Team PRC Cars                         
  800F3B00 FFFF
  800F3B02 FFFF
  800F3B04 FFFF
  800F3B06 FFFF
  800F3B08 FFFF
  800F3B0A FFFF
  800F3B0C FFFF
  800F3B0E FFFF
       
  Unlock All Team Solvalou Cars                    
  800F3B10 FFFF
  800F3B12 FFFF
  800F3B14 FFFF
  800F3B16 FFFF
  800F3B18 FFFF
  800F3B1A FFFF
  800F3B1C FFFF
  800F3B1E FFFF
       
  Included Bonus Disc                              
       
  Ridge Racer HI REZ                               
       
  Always Place First                               
  80088948 0001
       
  Infinite Checkpoint Time                         
  80088488 06C5
       
  Lap Time is Always 0:00:00                       
  80088958 0000
  8008895C 0000
  80088960 0000
       
  Quantity Digits to Accompany Speed Modifier Code 
       
  05B5 - 200MPH                                    
  0890 - 300MPH                                    
  0B68 - 400MPH                                    
  0E47 - 500MPH                                    
       
 Note: At the yellow screen that displays the heat, press L1. You will
 start on the first track, however the game will think it is the last
 race. 
 
                                 Japanese Version
 
       
  Unlock Extra Trial Mode                          
  800F3754 0001
       
  Complete Extra Trial Mode                        
  800F375C 0101
  800F375E 0101
       
  Press L2 + Select For Speed Modifier             
  D00F381A 0101
  800ABEB8 ????
       
  Unlock All Tracks                                
  800F370C FFFF
  300F3754 0001
  800F3758 0101
  800F375A 0101
       
  Unlock All Team DRT Cars                         
  800F3710 FFFF
  800F3712 FFFF
  800F3714 FFFF
  800F3716 FFFF
  800F3718 FFFF
  800F371A FFFF
  800F371C FFFF
  800F371E FFFF
       
  Unlock All Team MMM Cars                         
  800F3720 FFFF
  800F3722 FFFF
  800F3724 FFFF
  800F3726 FFFF
  800F3728 FFFF
  800F372A FFFF
  800F372C FFFF
  800F372E FFFF
       
  Unlock All Team PRC Cars                         
  800F3730 FFFF
  800F3732 FFFF
  800F3734 FFFF
  800F3736 FFFF
  800F3738 FFFF
  800F373A FFFF
  800F373C FFFF
  800F373E FFFF
       
  Unlock All Team Solvalou Cars                    
  800F3740 FFFF
  800F3742 FFFF
  800F3744 FFFF
  800F3746 FFFF
  800F3748 FFFF
  800F374A FFFF
  800F374C FFFF
  800F374E FFFF
       
  Included Bonus Disc                              
       
  Ridge Racer HI REZ                               
       
  Unlock Bonus Cars                                
  800822A4 0001
       
  Unlock White Angel Car                           
  800822B0-0001
       
  Libero Grande                                    
       
  Freeze Demo Timer                                
  8012155C 0E10
       
  Klonoa: Door To Phantomile                       
       
  Infinite Health                                  
  8010CEE0 0006
       
  Quantity Digits to Accompany Speed Modifier Code 
       
  05B5 - 200MPH                                    
  0890 - 300MPH                                    
  0B68 - 400MPH                                    
  0E47 - 500MPH