Level 0 A room with yellow wallpaper, slightly damp dark yellow floors, and loud, buzzing yellow fluorescent lights. Though called a room, it is incredibly vast, consisting of a complex structure of varying heights, tunnel-like passages, and maze-like sections. This space shifts whenever it is out of sight; turning around may reveal an entirely unfamiliar landscape. It carries an unsettling atmosphere, as if someone is there, yet no one is to be found. By following certain procedures, one can proceed to the next level.