Demon

Commonly referred to as "Pinkies" or "Bull Demons", Doom's Demon is a big, bulky, vaguely humanoid demon. Demons do not have ranged attacks, so they are no threat at long range. However, Demons have a huge advantage over other hellspawn with ranged attacks: speed. Faster than any other non-flying monster in the original Doom (and outmatched only by Doom II's Arch-Vile in this respect), the Demon closes distances very quickly, often running towards the player in a zig-zag pattern, making them harder to hit.

In the original Doom, Demons were usually found alone or in small numbers, but in Doom II they were often found in larger packs, making them all the more dangerous to deal with.

The preferred weapon against Demons for many Doom players is the chainsaw; the Demon is unable to attack the player when being struck with the chainsaw, and furthermore the chainsaw does not use up any ammunition. However, the shotgun is also effective since it can cause damage at longer ranges, and the super shotgun can kill a Demon at close range with one blast.

If a demon is nearby, the game will play the sound effect DSDMACT.