Let's add mine
Blades of steel is one of my favourite nes game. A real hockey game,
with real fights, for a nes.
Super mario 1-2-3 Just saying Super mario gives them a meaning.
Zelda 1-2 Countless hours I spent trying to find dungeons in zelda1, or trying to find
the hammer in zelda2 when I was 8 years old.
Castlevania I didn't owned this game on Nes, but I played it on gameboy advance,
and really enjoyed it.
Excitebike Never really know why I would fall so often from my bike, but still
a classic for the Nes.
Metroid Really fun. Really, really fun.
Countless great games were released for the Nes. Enjoy yours!