Cyberdemon Boss Fight This boss isn't the most difficult to defeat, but you still need to have to be careful or else you'll get caught out and will die. Cyberdemon is perhaps the most formidable and powerful enemy in classic Doom.

Furthermore, Samuel Hayden briefs the player on the fight with the Cyberdemon, providing details beforehand.
DOOM Guide: How to Beat the Cyberdemon Boss Fight. One of the tougher boss fights in the Doom reboot is the battle against the Cyberdemon located in the Lazarus Labs level of the game. The Cyberdemon has a massive amount of health, so the player must be ready for a long fight.
It is a tall, muscular, minotaur-like beast with two dark black/grey horns, a cybernetic right leg, a large rocket launcher mounted on its left arm, red wiring on its lower torso, as well as patches of metal and wires on its right arm.