I think the real standout titles for nes have already been mentioned, and I would definately either go with super mario 3 or the legend of zelda; those are the best games with the most replay value. I don't think anyone else cited donkey kong, which is an arcade classic.
another ground breaking title you could check out is final fantasy (just released!) if you're into turn based rpgs
Currently Playing: NSMB wii, LoZ: Phantom hourglass (DS), Muramasa (Wii), Prince of Persia (PS3), Final Fantasy III (DS), Left 4 Dead (PC), Panzer Dragoon Saga (SS), Radiant Silvergun (SS)
Always Playing: Super Smash Bros. Brawl (Wii), SFIV (PS3), Mario Kart Wii
Steam: the_green_knight453
PSN: VincentVIII
Wii: .........
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Proud owner of: NES, SNES, N64, GC, Wii, PS1, PS2 (slim), PS3, SS, DC, GBP, DSi
