I know I didn't make the 2 hour deadline but I just saw this and wanted to share my favorite NES game. I will start by posting my Legend of Zelda record I posted awhile back.
https://steemit.com/gaming/@hippie-witha-gun/i-am-the-legend-of-zelda-master-ultimate-3-heart-challenge

Between the Orginal Zelda my next choice is Mario Adventure. How many of you have heard of this game? It is the number one game hack of all time. They took Mario 3 and made it into a whole lot harder, funner, and cooler of a Mario game.