Mednafen is an OpenGL command-line driven multi-system emulator with many advanced features. It emulates the Atari Lynx, GameBoy (Color), GameBoy Advance, Neo Geo Pocket (Color), NES, PC Engine (TurboGrafx 16), PC-FX, SuperGrafx, and WonderSwan (Color) and has the ability to remap hotkey functions and virtual system inputs to a keyboard, a joystick, or both simultaneously. Save states are supported, as is real-time game rewinding. Screen snapshots may be taken at the press of a button, and are saved in the popular PNG file format.
