Ghost

Ghosts are a non-canon enemies that appear in Haunted House. They move slowly towards the player. Usually when they are moving, they become penatrable, but once they get close to the player, the become solid, and they are vulnerable to damage. Once the are close to the player, they will pass through them, dealing minor damage. Once they are all dead, they will drop a Max Ammo, along with a random power-up.