Coach (Mario Party Advance)
From the Super Mario Wiki
Coach works at a swimming school. There is a swim meet in the pool and his student Cheep Cheep is not confident. Coach asks the player to race with him and lose, but to look natural while they do it. By losing, Cheep Cheep becomes more confident. Once the quest is completed, Coach gives the player the Desktop Golf Gaddget.
The ending of the game states that he wrote a book detailing his confidence-building techniques.
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