The Tomee Zapp Gun is compatible with the NES and the RetroN 1, 2, and 3. It allows you to play your favorite shooting titles such as Duck Hunt, Hogan's Alley, Gumshoe, etc. Plug the Zapp Gun into your console, insert a compatible NES cartridge, and shoot objects on-screen by aiming and pulling the trigger. This product will not work on LCD, LED, and most modern HDTV television sets.