The
cyberdemon is usually seen as the most powerful enemy you encounter in doom. His first appearance was in Ultimate DOOM the the last stage of episode 2 in
Tower Of Babel.
The cyberdemon has
goat legs but one of them is metallic or perhaps robotic. His weapon is a rocket launcher that replace one of his hand. His tactic is to mindlessly shoot 3 rockets in a row at the player which deals tremendously high damages even at the lowest difficulty. However this is his weakness because a player with some experience will be able to dodge the rockets easily because of the simple attack pattern it uses.
In DOOM II, in the stage named GOTCHA!, this stage is meant to show a battle between a cyberdemon and the
final boss of Ultimate DOOM, the spider mastermind. The cyberdemon usually always win unless the player interfer.
The cyberdemon makes a come-back in
DOOM III where he is the final boss of the game. Despise his incredible damage rating, if the player defeats it the usual way, the cyberdemon is quite easy to vanquish.
Oh so this is the last stage of episode 2... uh? Theres nothing... wait... WHAT IS THAT!?
The Cyberden and Go 2 it in
Final DOOM plutonia is the
stages with the most cyberdemons.