John NES Lite is NES/Famicom emulator for android 2. 3. This app does not work without your own game files. Features. Original NES engine. Cheats (Game Genie/PAR). High quality rendering. Very fast. Search game files in SDCard & Internal storage. Virtual On-screen keypad. Zipped file support. Save States (with previews). Customizable keys. Turbo buttons. Screenshot.