Level 0 A room with yellow wallpaper, a slightly damp dark yellow floor, and buzzing yellow fluorescent lights. Though called a room, it is incredibly vast, featuring a complex structure of high and low ceilings, tunnel-like passages, and maze-like corridors. The layout shifts whenever it is out of sight; turning around may reveal an entirely unfamiliar landscape. There is a lingering atmosphere suggesting someone or something might be there, yet no one is seen. By following certain procedures, one can proceed to the next level.