Converting UK Action Replay Codes to US GameCube: Impossible (Region Locking)

You cannot directly convert UK Action Replay codes to work on a US GameCube. Two fundamental barriers prevent it:

• Region locking: UK Action Replay discs only boot UK (PAL) games; US (NTSC) games won't load.
• Code structure differs: Memory addresses, hook types, and encryption vary between regional versions of the same game.

What to Do Instead

1. Find US codes: Search sites like GameHacking.org, CodeJunkies (archived), or GameFAQs for "[Game Name] Action Replay codes US".
2. Use a US Action Replay disc: If you have the hardware, enter the US codes directly.
3. Region-free boot discs: Tools like FreeLoader or Action Replay Max (with region-free firmware) can let a US console run a UK game (or vice versa), but you still need codes for that specific region's build.

Warning: Cheat codes can crash games, corrupt saves, or brick memory cards. Always back up your save data before experimenting.