The neighborhood is in danger as Old Man Nebbercracker's house has come to life and is threatening to eat anything that comes close. With Halloween approaching, three children - DJ, Jenny, and Chowder - are aware of the malevolent house and plan to stop it before it's too late. They must explore the house's interior, navigating through its various floors, including the basement, attic, furnace, and roof.
As they journey through the house, the player takes on the role of the three children, switching between them as needed. Each child has their own health meter and unique abilities, such as Jenny's ability to crawl through small spaces, DJ's ability to climb ladders, and Chowder's ability to move heavy objects. The children can collect items like candies and water droplets to restore health, use flashlights to navigate dark rooms, and camera flash cubes to stun enemies. They also have access to a Walkie-Talkie to communicate with their friend Skull, who provides directions on what to do next.