Wraith

Summary
The spirit of a fallen survivor - the wraith will still attempt to kill you. These spirits will try to hit a player, which will then inflict a disease where said target takes repeated damage until it wears off.

Background Story
Spirits of survivors slain by the golumns, resurrected to defend something. A friend, a god, something that they know you should not try to fight. Perhaps even after death, they feel the need to remain and try one last time to stop - you.

Being composed of poisonous gas, they cannot be defeated with conventional methods, requiring one to "blow them apart" with an extinguisher to finish them off for good.

Tips

 * Wraiths are immune to bullets, don't waste your ammo to shoot them.
 * The main method to kill them is using the Fire Extinguisher and Flamethrower. They also can be damaged via melees.
 * They can sometimes spawn in the obby part of Chronos Quest, be vigilant.
 * Only the Wraiths with red eyes will attack you.
 * However, you can still kill grey-eye Wraiths with the weapons mentioned above.

Trivia

 * Similar to Golumns, the Wraith appears to be floating.
 * They appeared to have similar traits to Boo.