****The following statement is my own personal opinion ... do not be offended if I left off that title that you think is the most amazing thing since Brittany Murphy****
These are the games I find worth actually owning on the NES (value of game does not compute when worth owning is being discussed):
1943, Athena, Battle of Olympus, Blaster master, Castlevania II, Chubby cherub, Clash at Demonhead, Contra, Destiny of an Emperor, Dragon warrior I-IV, Faria, Flying Dragon, Gargoyle's quest, Gauntlet, Goonies, Guardian Legend, Karnov, Kid Icarus, Kid Niki, Legend of Zelda, MUSCLE, Magic of Scheherazade, Mega man, Metroid, Mike Tyson's Punch out, Pac man, Power blade, Pro Wrestling, RC Pro-am, Rygar, Section Z, SMB 3, Tetris, Trojan, Ultima : Quest of the Avatar, Willow, and Wizards and Warriors.
Holy crap ... thats exactly 40 games. I did leave off a few titles I consider iffy. Final fantasy during its actual NES days was cool but with the "fixes" that occured on the GBA/PS1 version of the game, the NES version is very limited now and unplayable since. Swords and serpents is something I did enjoy when I first played but now its just not really enjoyable with its lack of almost anything visible.