Mednafen is a multi-game-system emulator, for various platforms, including emulation of Atari Lynx, Famicom, GameBoy (Color), GameBoy Advance, Neo Geo Pocket (Color), NES - both NTSC and PAL, PC-FX, WonderSwan (Color), PC Engine/TurboGrafx 16 (CD) and SuperGrafx. Mednafen requires libsndfile, and will use jack-audio-connection-kit if it's available at build time; both are available from SlackBuilds.org.