I just started playing n64 again and love it! Here are my favorites in no order:
Goldeneye
Perfect Dark
Wrestlemania 2000
Mario Kart
Super Smash Bros.
Gauntlet Legends
Army Men Sarge's Heroes
Vigilante 8
Zelda
mario 64
Wow that is only a few of the games I love...perfect dark and mario kart are hard to beat when it comes to multiplayer!