How to Use Action Replay Codes on GameCube

You cannot use Action Replay on GameCube. Action Replay (by Datel) was made for Game Boy Advance, Nintendo DS, and later 3DS/PSP/PS2—but never for GameCube.

GameCube Cheating Options (Historical)

• Action Replay Max / GameShark for GameCube: Disc-based boot discs (launched 2003–2004). You boot the disc, swap for your game, enter codes. Rare, expensive, often incompatible with later GC revisions (DOL-101).
• SD Media Launcher / SDGecko: Homebrew launcher via Memory Card slot + SD card. Runs Swiss (homebrew OS) which can apply Action Replay / Gecko codes from .gct files on SD. Best modern method.
• Modchips (Qoob, XenoGC, ViperGC): Soldered to drive/board. Boot burned discs / homebrew. Obsolete; Swiss + SD2SP2 is superior.
• Game Boy Player + GBA Action Replay: Only works for GBA games played via Game Boy Player.

Modern Recommended Setup (2024)

1. GameCube (DOL-001 or DOL-101)
2. SD2SP2 (SD card adapter for Serial Port 2 – bottom of console) – $15–$20.
3. Swiss (boot via XenoGC modchip OR Memory Card exploit like Portable / GCLoader / XenoFlash).
4. Place .gct code files on SD:/codes/ – Swiss applies them at boot.

Legal/Ethical Note: Only use codes on games you own. Online play (via WarPipe, XLink Kai, Dolphin netplay) with codes is bannable and ruins others' experience.