Spiderdemon/Doom II RPG

The Spider Mastermind is a class of Arachnotron found in Doom II RPG, and a acts as a boss. It is the second form and more powerful than Arachnotrons. It resemble its counterparts in Doom, Doom II, and Final Doom, and is mounted with a machine gun (but has more health than earlier encountered Arachnotrons). The Spider Mastermind births three Arachnotrons upon death.