Advanced open-source port of the Snes9x emulator based on version 1. 55. A 1GHz+ device is recommended for best results. For older devices, a faster version based on 1. 43 is available for download on my site. Any ROM media must be supplied by the user. ROMs may be in. Smc and. Sfc formats, optionally in ZIP, RAR, or 7Z files.