Anomaly #0016 "Doombringer's Boss" is a highly dangerous and powerful anomalous entity that appears in servers to terrorize players, usually appearing as a tall and imposing red robloxian figure with a screaming burnt corpse for a face, though many have described it as a tankish and brutish creature with burnt skin and a screaming burnt face.

The reason for the second image's description has been identified as a gas emitted by the device you are playing on when encountering #0016, said gas is odorless and has no real identifying features, when it gets into the nervous system it causes you to see things that aren't there, and makes #0016 much more horrifying to encounter, and also causes you to sweat much more.

When #0016 appears in a server the clocktime will be set to night, an instant feeling of paranoia and dread will overtake the player in the server with it. After it appears, #0016 will begin terrorizing players, screaming and emitting uncomfortable wails as it hunts for you, once it inevitably finds the player it is looking for it will engage in a "boss fight" with them, in which the player is required to avoid #0016 and attack it until it stops fighting, after it stop fighting it will mark you as "worthy" for later.

Players that do not gift anything worthy to the entity will be kicked from the game, and will begin to get haunted by it. The haunted victims report the symptoms of: coughing up blood, earbleeds, sudden night pains, and scratch marks on random parts of their body. After a week, the victim's heart will suddenly fail to continue beating, resulting in a slow and painful demise.