1 - Waverace 64: Such an amazing showcase game for the N64. The sequel on the Gamecube was better looking, but there was something about the water physics in this game that nailed it.
2 - Pilot Wings 64: I wasn't a big fan of the original game, but it was still entertaining in short doses. This version was all-around better, especially since you could save your progress without a stupid code.
3 - Super Mario 64: Some call it the greatest game of all-time, but I prefer to think of it as the 3rd greatest Super Mario game.
4 - Star Wars: Rogue Squadron: Toss Shadows of the Empire aside, this was the Star Wars game we'd waited for on the N64. I enjoyed it so much, that the moment I saw the screen shots for the Gamecube version, I bought that console as well.
5 - Ogre Battle 64: It's Ogre Battle, what more needs to be said.