Can you use Game Genie codes for NES? I tried using the built in cheat options for a NES game but after applying the cheats they didn’t work. If I try to search for a value to create my own cheat RetroArch crashes.
Well, i’m using RetroArch v1.7.2 with last Nestopia Core, all GameGenie codes works. Try update your cheat database by Online Updater. The codes from Gamehacking.org works too.
Good Luck!