UMA Maze

UMA Maze is a concrete maze directly next to the stairs. It has two different levels: The surface level and the deep level, being differentiated by their appearence and ambience. The surface level houses a file and a battery at a blood splatter on the wall. The deeper level also houses a file and a battery at a dead end. At the deepest part of the maze, the wheel is found, two batteries close to it. Once it is collected, UMA will begin to chase the player. Once the player returns to the surface level, UMA will teleport next to the player at an intersection. If you lure UMA out of the maze and enter back inside to where UMA blocked you off, you will find a file.

Old Versions
In the beta, the deep level didn't exist, leaving only the surface level, and thus UMA not existing either. Instead of finding a file at the blood splatter, a wheel appears instead, and when it is collected Stalker will chase the player.