Super Mario 64 is fully playable. Smash Bros almost. Other than that not much else runs. Snowboard kids runs but is too slow to be fun. Def check out SM64. It's very impressive. In the future most games should run ok.
the N64 wasn't that great anyway so you're not missing much.
I dunno, Sin and Punishment, Banjo, Banjo 2, Perfect Dark, Goldeneye, Zelda OOT, Zelda MM, Snowboard kids 1 and 2 the list goes on and on.