Poltergeist

Poltergeist is a sub boss in Luigi's Mansion: Dark Moon. While Luigi explores the Gloomy Manor, E.Gadd, insists Luigi to capture this ghost for study purposes. A purple of version of the Poltergeist is the sub boss of Old Clockworks. The Poltergeist can also be encountered as a boss on the ScareScraper.

Abilities
The Poltergeist has the power to move objects with telekenisis. When Luigi fights the Poltergeist, it throws books at Luigi while Luigi searches for it. It can also throw books at Luigi while its being sucked into the Poltergust 5000 to get away. Additionally, it can create up to two clones of itself that Luigi will need to dispose of before he can suck up the main ghost. It also plays the piano during the entire battle.