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This article is about the secret boss that appears in Moonview Glacier from Newer Super Mario Bros. DS. Not be confused with Boolossus, the main boss of Pumpkin Boneyard from Newer Super Mario Bros. Wii.

King Boo
King Boo DarkMoon
Game(s) Newer Super Mario Bros. DS
Appearances (DS) The House of Stairs
Related enemy Boo
Boolossus

King Boo is a secret boss that appears in Newer Super Mario Bros. DS. He's only fought in Moonview Glacier's The House of Stairs, where he is blocking the secret exit that leads to World 5-Cannon.

Fight

King Boo attacks you by chasing you through a hallway. There are other boos and spikes in the hallway. King Boo will also shoot ghost balls at you. At the end of the hall way is a switch, press it and it will shrink King Boo to a normal boo size, defeating him.

Trivia

  • King Boo is originally from the Luigi's Manson series.
  • His fight is like Boolossus from Newer super Mario bros. Wii, but backwards.
  • King Boo is the only boss to not be fought in a tower, castle, or airship, he is fought in a ghost house.
  • King Boo is fought in a ghost house, likely a reference to the Mario game "Super Mario World," were the boss big boo is fought in a ghost house.
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