Part 1: Class 0

It isn't really anything here, it's just a infinite maze, and the wallpaper is black and white squares. No entities at all. If you are unlucky you might take the path to part 2.

Part 2: Class 5

You shouldn't be here. The wallpaper here is a swirl of white and black, and there are uncountable amounts of entities, but all of them are Insanities and Gymsanities. If you see a gray door, go through it to go to other levels.

Entrances

The only known entrance is to noclip through a black and white part in level -1.

Exits

Go through the black door, and you will go to level i.