The following are known Code Breaker Codes for Hamtaro: Ham-Ham Heartbreak on Nintendo Game Boy Advance (GBA).

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

• Master Code – Must Be On
  0000D435 000A
  100E3AA8 0007
• Infinite Sunflower Seeds
  8201D0C2 03E7
• Infinite Acorns
  8201D0C4 03E7
• Infinite Rocks
  8201D0C6 03E7
• Have All Items
  83002184 FFFF
  83002186 FFFF
  83002188 07FF
• Press Select During Transitions To Advance Forward!
  D0000020 0004
  320039F0 0001