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

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

• Master Code – Must Be On
  9DDF1064 2CC7
  EA4DB376 AD4B
  476357E4 9616
• Infinite Nitro’s
  2800656A 0D61
• Infinite Gas
  55E91E15 6D56
• Infinite Retries
  8B6EE9E0 9D6D
• Extra Nitro Boost
  C3EF9B95 F79F
  22C30573 BC5B
• Have 200 Cup Points
  A4D58DF9 271A
• Start With 5000 Action Points
  0EC96B47 AD60
  26D349E3 B71B
• Press Select+L To End Race
  4733D54A 997D
  78C93295 478B
• Unlock All Players
  5A403694 8561
• Unlock All Cups
  083261EE 526A