Legend of Zelda: Majora's Mask (My first Zelda and such a great story.)
Banjo-Kazooie (Great 3D platformer and amazing visuals for an N64 game.)
Star Wars: Rouge Squadron (My first N64 game and a great one at that! Open-world missions and great visuals.)
Mario Kart 64 (Great racing game with a really fun multiplayer! If I was stuck in a room and a few friends without internet and my N64, this would be my go-to game!)
Super Mario 64 (Helped innovate the 3D platforming genre and has great level design. Unfortunately, it has not aged well, especially in camera controls.)
The ones that I played the most are: Super Mario 64, Legend of Zelda: Ocarina of time, Pokemon Stadium 1 and 2, Mario Kart 64, Pokemon Snap, and that Kirby crystal game!!