True-Blue Boo

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Mario Party Advance quest
True-Blue Boo
True-Blue Boo in Mario Party Advance
True-Blue Boo in Mario Party Advance
The Boos' problem
Type Mystery
Location Boo Cemetery, Horror area
Client Boo
Reward Predictotron
Description "The player must discover which of the four Boos is a fake and therefore which Boo stole the golden Boo statue."
List of quests

True-Blue Boo is a quest in Mario Party Advance that is given by a Boo. It serves as the tutorial quest for Yoshi if the player starts the game as him, although it can be completed at any time by any character. A group of four Boos are concerned about an unspecified crime, and ask the player to solve it for them. They can either agree to help, which promptly starts the quest, or they can quickly refuse the offer, causing the Boo to accuse them of being scared. Once the quest begins, Shroomlock arrives, and the Boos explain to him and the player that their golden Boo statue has gone missing. Shroomlock believes that it has been stolen, and the four Boos suddenly realize that there are four of them when there should normally be three. Shroomlock accuses the extra Boo of being the culprit, and asks the player to help him find the odd one out. The four Boos then start to move around in a dance-like pattern, with one of them occasionally breaking the pattern and moving in a different direction; this Boo is the culprit. If the incorrect Boo is chosen, the guilty Boo starts laughing (which isn't noticed by everyone else) and Shroomlock forces the player to restart the quest. Once the correct Boo is chosen, his transformation is removed to reveal that Koopa Kid stole the statue. He then sprints off, leaving the statue behind, and Shroomlock chases after him. To thank the player for their help, the Boo gives them the Predictotron Gaddget.

Names in other languages[edit]

Language Name Meaning
Japanese きえた?テレサぞう[1]
Kieta? Teresa Zō
Is it gone? The Boo Statue

French Le vrai-faux Boo
The true fake Boo
Italian Boo contraffatto
Counterfeit Boo


  1. ^ かげらいまどかK. 1人用マリオパーティアドバンス字幕プレイpart1 (Japanese). YouTube (2018-10-07). Retrieved on 2023-11-10.