Cool. I have to imagine there's some real stinkers in there though, lol. What's the worst N64 game?
Carmageddon 64. Anyone who says otherwise likely hasn't played it.
And yes, I've played Superman 64. It's certainly bad, but I've definitely played worse games, not just Carmageddon 64. I think a large part of its reputation is just that it was a moderately-hyped game back in the day, and part of a well-known franchise, and so things kind of snowballed from there.
I thought Castlevania was pretty good, especially the second version.