The following are known Code Breaker Codes for GT Advance 2: Rally Racing on Nintendo Game Boy Advance (GBA).

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

• Master Code – Must Be On
  9F24F451 2913
  C917BF38 FF4D
  A58A477F 858E
• Always Rank 1st
  0830C051 48C0
• Press Select For Quick Finish
  2E3A9E26 4F88
  B0641553 4B76
  2E3A9E26 4F88
  2C118157 1CCC
• Press R For Turbo Boost
  0E389C00 4FC8
  0E09304A 3ECD
• Have All Licenses
  E3D5E48A 31BB
  6FE17884 3689
• Unlock All Tracks
  71E05993 C23E
  C3D7E6AE 31BB
  C3C37EA0 33B7
• Unlock All Cars
  9FD6E62E 2509
  FDC4559D 874C