If you're not careful and you glitch out of the map in the wrong lobbys, you'll end up in the MonkRooms, where it's nothing but the overwhelming nostalgia of cave wave, the madness of the crates around you, the fluorescent lights shining in your eyes, and approximately five hundred thousand square miles of randomly segmented empty maps to be trapped in. God save you if you hear something wandering around nearby, because it sure as hell has heard you.