Less compatible than CATSFC, but can actually run many special chip games at full speed Redbook audio hangs when suspending or pausing RetroArch MegaDrive/Genesis/MasterSystem/GameGear/CD/32X/SG-1000 MegaDrive/Genesis/MasterSystem/GameGear/CD/32XĢD games run full speed, 3D games run about 30 FPS or less Most games are too slow to run even on New 3DS, though JoJo runs almost full speedĪcceptable with Pokemon Ruby/Sapphire, but some games are slow to use, even on New 3DS, at present Main core (fbalpha2012_libretro) does not work, but platform-specific cores run at full speedĪ few games are unable to be loaded due to memory constraints.5.2 MegaDrive/Genesis/MasterSystem/GameGear/32X/Sega CD.