In Amnesia: The Dark Descent, the player's character will occasionally "hallucinate" enemies. These enemies will not attack the player, but will dissolve into dust when approached. This is an example of such an enemy, which can be encountered early in the game after picking up the key to the wine cellar. Note that you must approach the collapsed passage for it to appear, and that it will appear regardless of your current level of sanity.
![](https://i.ytimg.com/vi/-uiWGYbUH3E/mqdefault.jpg)