The following are known Code Breaker Codes for Gadget Racers on Nintendo Game Boy Advance (GBA).

These codes are for the U.S. version of the game.

• Master Code – Must Be On
  99184FAB B3A4
  13F69A3D F131
  41235540 F8E4
• Max Money
  87EF5C41 8974
  9CA09208 E8DE
• Always Low Time Overall
  93E7865C 6498
  93F78758 7490
• Idiot AI Car 1
  B8C1AE4C 645A
  B8D1AF48 7452
• Idiot AI Car 2
  C1614E75 2609
  C1714F71 3601
• Idiot AI Car 3
  DA67867C E08B
  DA778778 F083
• Idiot AI Car 4
  E3476655 A288
  E3576751 B280