Legend of Zelda: Ocarina of Time is a masterpiece. Someday in the not so distant future, people will look back on it as the timeless classic it is. Much like some oldies songs are recognized today.
I spent countless hours playing Goldeneye 007. So much so that it became an unspoken agreement that if you were using Oddjob in multiplayer, you were cheating. This came about after many arguments and discussions in which friendships were tested.