The following are known Code Breaker Codes for Spirit: Stallion of the Cimarron on Nintendo Game Boy Advance (GBA).

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

• Master Code – Must Be On
  9ED291A0 4AB7
  FC8B17FD 2F60
  71AF679D AB25
• Easy Tame & Infinite Health (All Horses)
  635760DC BDB3
  9D9C11E3 0079
  634760D8 B4A3
  9D9C11E3 0079
• Infinite Food & Have All Items
  C0D56084 BD7C
  84C46082 B02C
  C8D5A084 717C
  D8EFA081 702C
  D8FFA085 7D3C
  D8EFA081 742C
  16FE60C7 BD3A
  52EF60C1 B06A
  16FE60C7 B93A
  16EE60C3 B06A
  1EFEA0C7 7D3A
  5AEFA0C1 3822