I am building a GBA cheat library for this device using the USA cheat files. I have discovered that basically most cheats that work on PC RetroArch, don’t work at all on the RG351P’s cores. Using VBA-Next with Codebreaker codes has been quite successful, but REQUIRES the Must Be On (M) code for many titles, but not for some. For example, Sonic Advance (U) doesn’t use the standard (USA) (En, Jp) codes, but the (World) version, and doesn’t need (M) on. Hope this helps those searching for cheats for games like Pokemon and such. I’ll also be tweaking and adding custom codes I’ve made to my cheat file list and will host this on the site once I get that up.