FCEUX often saves configurations in the same directory, making it a "portable" emulator, ideal for running from a USB drive. If you'd like, I can:
Go to Config > Input to set up your keyboard or joystick. Full Screen: Toggle full screen using Alt+Enter . Known Issues & Tips EmuCR-fceux-win64 (4).zip
Supports NES (NTSC/PAL), Famicom, and FDS ROMs (formats: .nes, .fds, .unf, .rar, .zip, .7z). FCEUX often saves configurations in the same directory,
How to Install Fceux TX Emulator on the Nintendo Wii / Wii U! Known Issues & Tips Supports NES (NTSC/PAL), Famicom,
Guide you through configuring to get that classic CRT look. Explain how to use the save state system (F1-F10 keys). Let me know how I can help you further with this emulator! Downloads - FCEUX
Go to File > Open ROM to load your NES game files.