The 1985 original Nintendo Entertainment System one of the best-selling consoles of its time, and it helped revitalize the US game industry following the video game crash of 1983. It introduced a now-standard business model of licensing 3rd party developers to produce and distribute games. 
Pre-owned console
Been tested ( Still using the same skills of blowing the carts and popping them in!)
Comes with plugs including 1 controller, zapper and the original Super Mario Bros./ Duck Hunt
*Just remember you need a classic CRT TV to use the zapper* 
 
And just want to add if you don't want to deal with the hassle of trying to get games to come on the original NES, why not get the Hyperkin RetroN systems? They are much cheaper. Some consoles include a HDMI cable and you have to do little to no work on getting games to work.
 
And we have them right here on this website with fast shipping!