And Superman 64 isn't the worst N64 game... well it might be, but Carmageddon 64 is right there with it. But it doesn't have creatively explained in the story pea-green fog really close in the whole game...
Well at least they tried to explain it, right? I love it when developers try to excuse graphical crappiness with an explanation in the game. Like Deus Ex's world is all blue and grey because the color fairies who used to color the world with wonderful colors were killed in The Collapse.
Only a true villain like Lex Luther could come up with something as evil as forcing you to fly through rings...over and over and over and over AND OVER!!
Actually if you plan on getting into game design it's probably a good idea to play stuff like Superman 64 from time to time. To find out what exactly made it so bad, and try to avoid similar problems with your own projects.