Entity 6, also known as Dullers, are darkly contrasted humanoid entities featuring long arms, with skin similar in texture and appearance to tar. Descriptions of the physical appearance of Dullers seem to vary, but the most common description is the lack of major sensory organs (eyes, ears, nose). The substance the skin is composed of is in a constant state of toggling from a liquid to a solid, making it slowly drip down. Dullers can melt and reform their bodies, usually as a trap to catch prey. It could range from them being more liquid than normal, to being a gray puddle. Do not go near any dark puddles that you may find, as it is most likely a trap by a Duller. If you go near it, the Duller will form an arm out of the puddle, quickly wrap it around you and pull you into the puddle. Those who have went into the puddle were never seen again. It will then become docile and start hunting again after a few days. This is seemingly because dragging victims into the puddle is how Dullers eat, and that would be enough to feed them for a few days. This theory is unconfirmed but highly likely.
Dullers, when not in a hunting mode, will usually wander around levels and explore them. Dullers are easily frightened when docile, and usually run away from anything they see as a threat.
While in a hostile state, they melt themselves into a puddle. When anyone gets too close, they will make an arm appear out of the puddle to grab the victim and pull them in and most likely eat them. Once they catch their prey, they reform back into their normal appearance and turn docile again.
A Drawing of a duller