Changes

Using recent builds of the bsnes libretro cores, you can load Game Boy games in a fully emulated Super Game Boy. As this feature is not currently implemented in RGUIusable from the menu, you must do so using a command line. First you need to set the core to a bsnes core (any of the 3 profiles will work) using RGUI or editing your config file, then start Start RetroArch with the following command to load GB games in SGB mode using bsnes:

retroarch "path to Super Game Boy SNES cartridge ROM" --libretro "path to bsnes libretro" --subsystem sgb "path to Game Boy cartridge ROM"

Put the actual paths to the ROMs in double quotesif there are spaces in the paths. For example:

retroarch "C:/\Games/\SNES/\Super Game Boy 2 (Japan).sfc" --libretro ".\cores\bsnes_balanced_libretro.dll" --subsystem sgb "C:/\Games/\Game Boy/\Kirby's Dream Land (USA, Europe).gb"