The Legend of Zelda: Ocarina of Time. I never had an N64 (but have played N64 at friends/other family), but I played a good amount of N64 games and I first played Ocarina of Time on the GameCube and it became one of my all-time favorites (and I also somehow had a gold cart of OoT N64 but I don't know what happened to that).
Xbox/Windows Gamertag and Nintendo Network ID: TDPNeji
PSN and Steam: NejiHyuga900