10-Yard Fight [Nes][CompleteTheGame]
One of the launch titles of the Nes, one of the legendary Black Box titles.
It is a pretty basic arcade game, based on Irem's arcade game with the same name, where you try to win a game of American football.
It got five different difficulty levels (High School, College, Professional, Playoff, and Super Bowl), and the differences are how far you must run with the ball, how fast your opponents are and how often they tries to tackle you.
The only difference between Playoff and Super Bowl are your opponents color. If you win the game, you will get to play on a hgher difficulty and the game tells you that you are on your way to Super Bowl. If you complete the game on Super Bowl... it shows the same ending screen and you will play yet another game on the same difficulty. Forever.