Skeleton Ghosts are enemies found throughout the game of Luigi's Mansion. They are found in three locations: Boneyard, Graveyard, and the Telephone Room. Skeleton Ghosts sometimes do not get stunned by Luigi's flashlight. After they throw a bone, they collapse shortly and rebuild again shortly.
A Skeleton Ghost called Mr. Bones eventually wakes up in the Boneyard when Luigi is chased by Spooky whom is barking. In a while, Mr. Bones wakes up being disturbed by Spooky's barking. Skeleton Ghosts appear in the Graveyard, having to be defeated to encounter the area's boss Bogmire.