Lost Soul

The Lost Soul is a flaming, flying skull first introduced in Doom's second episode, The Shores of Hell. Arguably one of the most frustrating enemies in the Doom games, Lost Souls float at a leisurely pace until they decide to attack, at which point they launch themselves towards the player at high speed. If they miss, they'll continue careening through the air until they hit a wall or other object. The player can stop a lost soul's charge by shooting it while it is attacking. It is uncommon to find a lone lost soul on its own - they are more commonly found in groups.

Doom II furthered the use of the Lost Soul by utilizing them as the projectile weapon of the new Pain Elemental monster.

In Vanilla Doom, Lost Souls do not count towards the player's kill score, so it is possible to achieve 100% kills without destroying all Lost Souls on a level. Many source ports have fixed this phenomenon.

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