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Health 17000
Attack damage
(Cero Miedo)
50 + explosion
Attack type Projectile
Level E2M10

The Guardian is a boss encountered in The Facilities. It appears in E2M10: The Gauntlet and serves as the final boss of the second chapter. The Guardian appears as a tall, muscular, reptilian humanoid with a mortar launcher replacing its right arm. It's boss theme is Hand Cannon.


Upon completing the previous level, the player will appear in a small room with a large gate and two teleporters. Upon walking through the teleporter a short distance into one of the rooms, the Guardian will spawn and begin the boss battle.

Tactical Analysis[]

The Guardian has 17000 HP, making it one of the higher health bosses in the game. The Guardian's primary attack consists of rapidly firing bursts of Mortar grenades, up to five at a time. The closed-off corridors of the level make this especially dangerous, as the grenades can quickly catch up to the player. Like all bosses, weapons that deal high damage such as the Riveter and Hunting Rifle are ideal for fighting the Guardian. Luring the Guardian through a teleporter can help make the fight slightly easier, however the starting room is still small to a degree.

There are two alternative methods that can be used to complete the level instead of outright slaying the Guardian. The first method is to use the Crossbow to hit each switch necessary to open the gate without stepping forward enough to spawn the Guardian. This requires a knowledge of where the switches are, however it is done fairly easily. The second method is to telefrag the Guardian by attempting to teleport over it. The Guardian will need to be lured through the teleporter multiple times in order to complete this successfully. Killing the Guardian with a telefrag awards players the Telefragged achievement.


  • The appearance of the Guardian is a likely reference to the inhabitants of H.P. Lovecraft's short story "The Nameless City".
  • The Guardian was originally supposed to be the introductory boss variant of smaller "crocmen" enemies, similar to Mama and The Twins. This feature was cut from the game.
  • The track Hand Cannon is a play on the Guardian's main method of attack.
  • According to David Szymanski, The Guardian was one of the earliest enemy designs.[1]
  • Due to a bug, if the Guardian hits himself with his own explosions (even though they deal no damage), it will count as you hitting him, and will disqualify you for the Pacifist trophy. Since it is almost impossible to prevent him from doing this, using the Crossbow to hit the switches required to progress without triggering the Guardian spawning is highly recommended in order to gain a Pacifist rank.