Cueball

The Cueball serves as the replacement for the Possessed Engineer from Doom (2016). It is notably also the only demon in the game that both cannot move, and will not attack the Slayer.

Codex
''Former UAC Engineers, these malformed zombies were rendered inept during the war for Earth. Their bodies are now a disturbing fusion of body, bone, and barrel. ''

Appearance
The Cueball has the appearance of a bloated zombified engineer. Notably, several gas canisters can be seen sticking out of various parts of its body.

Combat Analysis
The Cueball will stand in place and do nothing until it is hit. Anything as little as a punch will cause the cueball to go flying in the opposite direction of where it was struck, exploding violently when it makes contact with a wall, the ground, or a demon. The explosion from a Cueball is notably more powerful than a rocket, and if a player sees one standing around, it is recommended to launch it either at a tight cluster of demons or at a more problematic opponent.

Outside of being caught in the blast radius, the Cueball is incapable of damaging the Slayer in any way. Even when standing directly next to it, the Cueball will not react whatsoever.