The Cyberdemon is the final boss and most powerful monster of Doom 3. It is found at the Primary Excavation Site, where it stands guard over the massive Hell Hole. It stands roughly 20 feet tall, more than 3 times as tall as a human soldier. Like its original counterpart, the Cyberdemon attacks by firing a salvo of 3 consecutive rockets from its arm-mounted rocket launcher. Unlike the original version, it now has a melee attack as well: the monster can stomp on the player, killing them instantly. The Cyberdemon is also the only monster from the original games to be a boss.