The following are known Code Breaker Codes for Tom and Jerry: The Magic Ring on Nintendo Game Boy Advance (GBA).

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

• Master Code – Must Be On
  90A497B8 F48A
  277B99B0 BDF5
  EDFC041E 21CC
• Infinite Health
  C8E56239 6144
• 1-Hit Death (Bosses)
  DC2B68AC 742C
• Invincible
  47DDC030 ADD5
• Have Cheese/Fish
  2ED4D375 BDFF
• Infinite Eggs/Bottles
  9F222EAB 38A5