Explore
 
 Stop your bike until your speed is 0 MPH. Then, press L1 + R1 + Up.
 Now your racer will dismount from the motorcycle, enabling you to
 explore the scenery. 
 
  Game Shark Codez:
 
               
  Infintie Cash                    
  800DAD40 FFFF
               
  Infintie Nitros                  
  800837EC 000A
               
  Infinite Bike Energy             
  801DD048 0080
               
  Infinite Energy For Yourself     
  800831C0 0BB0
               
  All Tracks Qualified             
  800DAD3C 001F
               
  Invulnerable                     
  80023180 0000
  80023182 0000
  800231C4 0000
  800231C6 0000
  800231C8 0000
  800231CA 0000
               
  No Energy for Your Bike          
  801DD048 0000
               
  No Energy for Yourself           
  800831C0 0000
               
  Negative Infinite Cash           
  800DAD42 FFFF
               
  Race Music is On                 
  800A5BEC 0000
               
  Race Music is Off                
  800A5BEC 0001
               
  Start on Level 1                 
  D00DAD3A 0000
  800DAD3A 0000
               
  Start on Level 2                 
  D00DAD3A 0000
  800DAD3A 0100
               
  Start on Level 3                 
  D00DAD3A 0000
  800DAD3A 0200
               
  Start on Level 4                 
  D00DAD3A 0000
  800DAD3A 0300
               
  Start on Level 5                 
  D00DAD3A 0000
  800DAD3A 0400
               
  Your Speed is Always ???? [Note] 
  801D642C ????
               
  The Mystery Code                 
  801D60DC 105D
               
 Note: With this code, if you fall of your bike, your bike will keep
 going. So turn the Game Shark off after a wreck.