The Arcade Annihilator emerged when basement floodwaters contaminated the arcade's electrical systems, causing a surge that fused zombie infection with malfunctioning game hardware. This created a hulking mutant that now stalks the darkened arcade, its origins tied to the initial quarantine breach. The entity's birth symbolizes how mall amenities became death traps as the outbreak escalated.

Standing over seven feet tall, the Arcade Annihilator possesses reinforced limbs from shattered arcade cabinets, granting it immense strength to smash through barricades. Its body flickers with erratic neon lights from embedded wiring, and it emits a low hum that disrupts electronic devices. The creature moves with jerky, glitch-like motions, and its touch can spread infection through corrupted electrical charges.

The Arcade Annihilator guards critical power junctions in the mall's entertainment district, often drawing zombies to its location with its disruptive energy emissions. It forces survivors to avoid or confront it when seeking resources, influencing escape routes and resource allocation during the apocalypse.