The area that the Kirbys arrive in after they grab the Skull Key
A skull key is a key that the Kirbys can grab in different locations throughout the 4 stages. Once the key is grabbed, the Kirbys will be sucked into the skull world where the Skull Gang will attack kirby until a rooster crows and morning arrives. The Red Skull will hold a treasure chest that the Skull Key fits into. Once the Red Skull is defeated, he will drop the treasure chest and the Kirbys will open the chest with the Skull Key. The usual treasure of a skull chest is either a medal or a large amount of fruit consisting mostly of bananas and apples. After a certain amount of time passes or when the Red Skull is defeated, a rooster will crow and the Kirbys will be sent back to the area where they first picked up the key.