Poltergeist is a monster in the class "The Ghosts." It is monster #40. This version of Poltergeist has a more ghastly and whispy appearance to it, as it's body is droopy and surreal looking. It and Ghost are the only 2 figures to require a support base based on its body.
Official Card Biography
The restless, and invisible ghost, Poltergeist is a spirit of dreadful chaos and deadly disorder. He uses noises of every kind and movement, like throwing furniture and breaking dishes and other objects to confuse and scare his innocent victims.
Poltergeist was only sold in UK stores bundled with the Haunted Mountain Playset which also came with Vampiress. While it was only sold this way in UK stores, its sale was easier and it became more common when the 2006 series was brought outside of the UK, as it was now bundled with the regular 4-pack of monsters.