King Boo's Puzzle Attack

King Boo's Puzzle Attack is a boss minigame in Mario Party 9.

Introduction
The camera zooms in on a window outside the tower. The view then enters the tower, where King Boo appears and laughs, and then the items fall from above, followed by the cursors appearing.

Gameplay
The game involves the players trying to line up three or more of the same item to deal damage to King Boo (similar to ). The items include Green Shells, Red Shells, Ice Flowers, Fire Flowers, and lightning bolts. All items are worth one point each except for lightning bolts, which give the player ten points and take three points away from the opponents. After losing half his health, King Boo sends a Boo in the playing field to temporarily stun any player's cursor that makes contact with it. Players whose cursors get caught by Boos must shake their Wii Remotes to break free (although lightning bolts can destroy Boos as well). The player who lands the final attack gets an additional ten points. Whoever has the most points is declared the winner.

Ending
King Boo spins and disappears, disappointed, and several Mini Stars appear in Party Mode and Solo Mode.

In-game text

 * Rules – "Line up three or more of the same item to launch an attack on King Boo. Line up lightning bolts for an extra powerful attack!"
 * Controls – "Hold the Wii Remote sideways. Press to move the cursor. Press  to select an item, then press up, down, left, or right on  to trade places with another item."

Trivia

 * This is the only boss minigame to give a final attack worth ten points.

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