Beat Conker.
It's an excellent game, had lots of fun even if I wanted savestates in a couple spots. The lava race was absurdly difficult, it took me over an hour and hundreds of tries to beat it, it was harder than the final boss or the bazooka beach. Some annoying jump spots too, and some places had me puzzled for a bit on what I even needed to do. I really liked the shit boss, and the zombie mansion. And of course the sunflower, ha.
I hit one bug, at the shit boss. When I died and respawned, he threw a couple shit balls and then just idled, the music didn't play and nothing could be done. Exit to menu and back, and both the music and the boss continued.
Graphically it was really nice looking, probably one of the best N64 games. Most levels were completely lag-free, but the rain intro and count Conkula's mansion had lots of lag. Conker's shadow is clearly a shadow volume, looking nice and responsive, but it was rather curious how its blending depended on the destination surface, some surfaces had it fully black and some alpha-blended it. No LOD popping anywhere that I could see, and disappearing models only in the distance, when I specifically looked for them.