Cheats for Resident Evil 4 on the AetherSX2 emulator are implemented by creating or downloading a .pnach patch file, containing codes for features like infinite ammo and max money, which must match the game's CRC code. These patches are activated via the 'Add Patch' feature in the AetherSX2 system menu, which also allows for traditional button-based codes. For more details, visit the guide on

Resident Evil 4 Cheat Codes Guide | PDF | Video Game Gameplay