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Both Polterguys forms shown in the bottom screen.
First Appearance Mario vs. Donkey Kong (2004)
Latest Appearance Mario vs. Donkey Kong: Minis March Again! (2009)
Parent Species Shy Guy (toy)
MvsDK ShyGuyGhost.png

Polterguys[1][2] (also known as Phantom Guys[3]) are red, yellow, and blue Boo Guys found in the Mario vs. Donkey Kong series.

Polterguys first appear as enemies in Mario vs. Donkey Kong. Like other enemies in the game, coming in contact with Mario will cause him to die and lose a life. Phantom Guys cannot be defeated, but they can be turned into blocks when Mario presses a button the same color as the ghosts. This will allow Mario to pass. Phantom Guys first appear in the Spooky House world. Shy Guys are transformed into similar-looking enemies by Donkey Kong's Color Switches in the boss stage.

In Mario vs. Donkey Kong 2: March of the Minis, they appear in the Spooky Attic stage. They function like in the last game for the most part, though now they are enemies to the Mini Mario toys, who serve as the game's playable characters. Once again, they can be turned into blocks when a certain button is pressed. This technique can be used to solve puzzles on the stages they appear. In the Construction Zone, Polterguys can be used in the Spooky Attic and Special Kit 3 sets. The latter allows them to interact with the game's new Mini Donkey Kong toys.

In Mario vs. Donkey Kong: Minis March Again!, Polterguys appear upright and have active wind-up keys on their backs like their walking counterparts. They also have a spherical aura of fire similar to Pyro Guys rather than transparent bodies. In addition, they remain in the same spot rather than move in a given pattern, even though they turn to face Mini Marios. They are first encountered in Room 3-5.

The name "Polterguy" is based on poltergeist, referring to its somewhat spectral appearance.

Names in other languages[edit]

Language Name Meaning
Japanese ゆーれいヘイホー[4][5]
Yūrei Heihō
Same as Boo Guy
Italian Tipo Spettro Phantom Guy


  1. ^ Mario vs. Donkey Kong 2: March of the Minis object graphics filename (data\anim\polterguy_anim.bin)
  2. ^ "Polterguy – Mini Mario will burn if he is touched by a Polterguy! Step on a color switch to turn all the Polterguys of that color into blocks. Polterguy cannot be hurt by the hammer." - Mario vs. Donkey Kong: Minis March Again! help.
  3. ^ "22. Phantom Guys" - Mario vs. Donkey Kong 2: March of the Minis help.
  4. ^ Mario vs. Donkey Kong Shogakukan book
  5. ^ Mario vs. Donkey Kong 2 Shogakukan book