jg-bsnes (Super Nintendo emulation core for Jolly Good Emulation) jg-bsnes is a cycle accurate emulator for the Super Famicom/Super Nintendo Entertainment System, including support for the Super Game Boy, BS-X Satellaview, and Sufami Turbo. This is a fork of bsnes v115. Filenames supported: .sfc .smc .bs .st .fig .swc To run files with other extensions: jollygood -c bsnes By default, no controls are mapped. The first time you run a game, press Shift-1 to configure the first controller.