Sixteenth patch version 1.
To control different games, you can change the “ input overlay”, which is essentially on- screen controls, as shown below. The overlays are pretty limited and look really squished in portrait mode, but you can download custom made ones from the Libretro forums ( Libretro is the development interface RetroArch uses). Shown below, the controls look a lot better in landscape, but they still. A Gameboy Color Emulator for External Controllers. , the GBC emulator for android works quite well, but I would still prefer the previous option.