Mancubus

Mancubi are enormously bloated, cumbersome but tough demons that look somewhat like extremely overweight humans. They do have some distinct demon features though - all green eyes, deformed feet, pointy teeth and three pairs of nipples. In addition their arms have been replaced by huge, rapid-firing fireball cannons powered by a generator strapped onto their backs. The game manual describes the Mancubus as follows:
 * The only good thing about fatso is that he's a nice wide target. Good thing, because it takes a lot of hits to puncture him. He pumps out fireballs like there was no tomorrow.

The plural of Mancubus is "Mancubi" rather than "Mancubuses": this is according to John Romero, who was asked as to the correct plural form. This is possibly a hypercorrection, but nonetheless should be considered the correct plural of Mancubus.

In Doom 3 the Mancubus monser appears to be more elephant like. They habe what appears to be a trunk extending from under the eyes and into the chest. If one uses the noclip cheat, one can see hooks which have suckers where the trunk begins. These monsters are usually accompanied by a Cherub monster.

Doom RPG
In Doom RPG, the Mancubus appears as a class of monsters. There are three variations, identified by color:


 * Blue : Behemoth
 * (Normal colors) : Mancubus
 * Red : Druj

Appearance statistics
The IWADs contain the following numbers of Mancubi: