Strong Poltergeist

Strong Poltergeist is a sub-boss that Luigi encounters in Luigi's Mansion: Dark Moon. The mansion it is fought in is Treacherous Mansion. When Luigi gets to the Study, he finds a book key that will unlock a door that leads to the Train Exhibit where Mario is supposedly held. Once Luigi puts the key in the bookshelf, Strong Poltergeist comes out of the shelf and takes the key to the Space Exhibit.

Appearance
The Strong Poltergeist is a yellow Poltergeist with white stripes across his body.

Battle
The Strong Poltergeist travels around the room throwing stars. Luigi must dodge these and shine his Strobulb on the Strong Poltergeist. After escaping the Poltergust 5000's suction, it goes inside the asteroid in the center and throws bombs at Luigi. Afterwards, it will get out and start throwing stars again.

Ghost Container Description
''As if they weren't enough trouble already, the crystals have augmented these brainy ghosts' telekinetic powers. I wouldn't want to run into this guy in a dark alley. That's for sure.''