Janitor Jynx has a shapeshifting form that alternates between solid and spectral, enabling it to bypass physical barriers and wield cleaning equipment as enchanted weapons. It emits an aura that interferes with technology and induces fear, while its touch can curse objects to attack survivors. Vulnerable to purified zones, it thrives in areas saturated with the infection.

It sabotages survivor efforts by cursing resources and safe areas, accelerating the mall's decay and complementing the zombie threat with supernatural hazards.