Amazon.com: 2 Pack Classic USB Controller for NES Gaming, miadore PC USB NES Controller Retro Game Pad Joystick Raspberry Pi Controller for Windows PC Mac Linux RetroPie NES Emulators : Video Games
How to Setup Controls For Nes Emulator fceux-2.2.2 - YouTube
How to Play NES ROMs on Your Computer (FCEUX)
Detailed instructions on how to install and experience the classic '4 button' games right on PC - ITZone
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5. Program customization
fceux/changelog at master · ryanwmoore/fceux · GitHub