Do you have that mini version of the classic Nintendo console? Here are some accessories to improve your experience.
NES Mini Classic Edition Accessory Bundle from TheKidMall - 1 Controller, 1 Power Supply, 2 Long 6ft Extension Cables (NES System Sold Separately) : Video Games
Review: The NES Classic Edition and all 30 games on it
2pcs Wireless Game Controller for NES Classic Edition, NiceCo 2.4G No-Wired Gamepad Joypad with Receiver for NES Classic Gaming System Console : Video Games
Super NES Nintendo Entertainment System: SNES Mini Classic Edition 45496590758
NES Classic Edition Wired Controller for Nintendo NES - Nintendo Entertainment System Classic by TheKidMall (2 Controllers - System Sold Separately)
274 Nintendo Entertainment System Stock Photos, High-Res Pictures, and Images - Getty Images
Best Buy: Super Nintendo Entertainment System: Super NES Classic Edition Gray CLVSSNSG
NES Classic Edition Wired Controller for Nintendo NES - Nintendo Entertainment System Classic by TheKidMall (2 Controllers - System Sold Separately)
Nintendo Entertainment System (NES) Architecture