The Arcade Abomination has an amorphous form of melted plastic, twisted metal, and bio-organic matter that glows with radioactive energy. It can manipulate electricity to disable devices and emit disorienting light and sound bursts, with a resilient body that regenerates by absorbing environmental debris. Its movement is erratic and jerky, allowing it to extend tendrils for attack or project holographic illusions to mislead prey.

It dominates the mall's arcade area, turning it into a hazardous zone that obstructs survivor movement and spreads mutation, forcing strategic decisions in navigation and resource management during the apocalypse.