I think I was about 6 when NES came out, I loved it.
Metroid
Contra
Kid Icarus
Legend of Zelda
Spy Hunter
Skykid - lesser known game, one of the best ever though
Tiger Heli
Iron Tank
Now, THAT'S classic. But don't forget:
Rush-N-Attack
Metal Gear
Metal Gear 2: Snake's Revenge
CastleVania 2: Simon's Quest
CastleVania 3: Dracula's Curse
Super Mario 2
Super Mario 3
Blaster Master (all this drama to rescue a FROG)
Double Dragon (nothing the arcade game, no two player simutaneous mode, had to earn hearts to get fighting moves)
Double Dragon 2: The Revenge
Double Dragon 3: The Sacred Stones
Super C (Contra 2)
Gradius
Life Force (Gradius 2)
Gunsmoke
Gyruss
Teenage Mutant Ninja Turtles (one turtle at a time)
TMNT 2: Secret of the Ooze
TMNT 3
Section Z
Commando
Bionic Commando
Those are some of the games I played and beat, back in the day.