More saved game positions
 
 Select the "New System Data" option, then hold L1 + R1 + L2 + R2 +
 Select + Start and press Circle to increase the number of saved game
 positions to fifty. 
 
 Alternate footstep sound effect
 
 Pause the game and press L1(2), R1(2), Down, Up, Circle.
 
 Mirror tracks
 
 Finish in first place on all tracks. Then at the track selection
 screen, press Right.
 
 View ending sequence
 
 Complete all mirror tracks. Then at the title screen, press Select.
 
 Double money
 
 Save the game twice in different slots. Enter the bank and use the
 money transfer function. Then, move the money from one slot to the
 other to double your money.
 
 Bonus animals
 
 Purchase all five kangaroos and five dinosaurs. Then the black
 kangaroo and white dinosaur will be available.
 
  Game Shark Codez:
 
                             North American Version
 
                 
  Infinite Energy P1           
  800100EA 0FFF
                 
  Infinite Money P1            
  8014873C FFFF
                 
  Max Money P1                 
  8014873C 967F
  8014873E 0098
                 
  P1 Has All Animals           
  80148736 FFFF
                 
  Infinite Time in Bonus Round 
  8014AB20 0C69
                 
  Max Money in Bonus Round     
  80148894 03E7
                 
  Lap 1 is 0:00:00             
  8014AB20 0000
                 
  Lap 2 is 0:00:00             
  8014AB24 0000
                 
  Lap 3 is 0:00:00             
  8014AB28 0000
                 
                                 Japanese Version
 
                     
  Infinite Energy      
  800100EA 0BB8
                     
  Infinite Turbo       
  800100EA 06FF
                     
  Infinite Money       
  80143774 967F
  80143776 0098
                     
  Infinite Gold        
  80142298 0E20
  8015643C 03E7
                     
  P1 Has All Monsters  
  8014376E FFFF
                     
  Lap Time is 00:00:00 
  80142298 0000
  8014229C 0000
  801422A0 0000