Spiderdemon

The Spider Mastermind (called also the Spiderdemon) is a die-hard creature, with 3000 hit points, the boss of Episode III (Inferno) of Doom. His weapon is a big machine gun that has the sound of the shotgun but with a spread similar to the player's chaingun. When a Spider Mastermind begins firing, it will not stop until his target moves out of his view or dies, if he is stunned (causing him to move) or if he is killed. Similar behavior can be observed with the Chaingunner and Arachnotron.