NFL Football is a 1988 American football NES video game, developed by Atlus and published by LJN.
This was the first to get an official National Football League license for the video game. Intending to loosely represent the 1988-89 season of the National Football League, the game uses the teams and play formations of that particular era.
You could play one of four options, either Interconference, AFC and NFC game or the Super Bowl. Along with the option to choose a package to play during the game.
As per the usual legal requirements, if you play these games without actually owning them, you may be breaking some copyright laws where you live.