The Bacteria

The Bacteria: Class 3 

The Bacteria (also known as The Howler) Is the only inhabitant of level 0. Level 0 is a non-linear space that represents the back rooms of a retail outlet. "If you're not careful and you noclip out of reality in the wrong areas, you'll end up in the Backrooms, where it's nothing but the stink of old moist carpet, the madness of mono-yellow, the endless background noise of fluorescent lights at maximum hum-buzz, and approximately six hundred million square miles of randomly segmented empty rooms to be trapped in." although this statement is not wrong, it left out one thing. You aren't alone while trapped in the 6 hundred million square miles of empty rooms...

you are able to escape the bacteria, if you are fast. Yet it cannot see, so  try standing still and making no noise. This particular entity makes loud howling noises, hence the name howler, when it senses you. So you'll know if it found you.

"Whatever you do, do not let it catch you. Run. Run as fast as you can. I've seen it, it has a way of taking over your body, possessing it. It can manipulate you, breaking your bones, possessing your system."  The bacteria can possess more than one person at once. Giving it the ability to swarm you with infectants. Not many Photos have been recovered of the Bacteria, because nobody has gotten the chance to take any.