The Restroom Revenant began as a mall janitor who ventured into the flooded basement to contain the infection, only to be possessed by a demonic entity from the contaminated waters. This fusion of supernatural and viral horrors created a tormented being that now lurks in restrooms, symbolizing the failure of sanitation and order in the apocalypse. Its presence serves as a grim reminder that the outbreak's roots extend beyond mere biological decay.

This entity has a semi-corporeal form that can phase through solid surfaces like restroom stalls and walls, making it elusive and difficult to confront. It emits a chilling psychic aura that induces fear and temporary paralysis in nearby survivors, and its touch can corrupt minds, amplifying disorientation. Vulnerable to intense light sources, it retreats from illuminated areas, reflecting its origin in the mall's darkest, water-damaged spaces.

The Restroom Revenant preys on survivors in mall restrooms, using possession and illusions to turn potential safe zones into deadly traps. It escalates the horror by undermining player trust in familiar locations, emphasizing the theme of psychological warfare alongside the physical zombie threat.