Free mednafen software for linux

Mednafen is an OpenGL command-line driven multi-system emulator with many advanced features.

Mednafen emulates the Atari Lynx, GameBoy, GameBoy Color, GameBoy Advance, NES, PC Engine (TurboGrafx 16), and SuperGrafx 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.

Due to the threaded model of emulation used in Mednafen, and limitations of SDL, a joystick is preferred over a keyboard to play games, as the joystick will have slightly less latency, although the latency differences may not be perceptible to most people.