File:Boo mario.jpg
Mario as a Boo on the Ghostly Galaxy.
The Ghostly Galaxy is a galaxy in Super Mario Galaxy where Mario can turn into a Boo with his new Boo Suit. Pink Boos, UFO spinning tops with Bob-ombs on them, Swoopers, and Pumpkin Heads have been spotted in screenshots. Recent gameplay footage has shown Luigi in a jail cell and calling out for Mario in a haunted house.