Invulnerability Hunter

The Invulnerability Hunter is a boss monster found in Doom 3: Resurrection of Evil. It is the final Hunter the player will encounter.

The Invulnerability Hunter draws power from three active power coils in the room, rendering it invincible. Destroying the open coil will cause a temporary shutdown, leaving the Hunter vulnerable. When the remaining coils reactivate, repeat the process. When all the coils are destroyed, the Hunter will no longer be able to retain its invulnerability.

Killing it will gain the invulnerability power for the Artifact.