# retroarch > RetroArch is a frontend for emulators, game engines and media players. > It is the reference implementation of libretro API. > More information: . - Start in the menu mode: `retroarch` - Start in full screen mode: `retroarch --fullscreen` - List all compiled features: `retroarch --features` - Set the path of a configuration file: `retroarch --config={{path/to/config_file}}` - Display help: `retroarch --help` - Display version: `retroarch --version`