Condo of Mystery!
From the Super Mario Wiki, the Mario encyclopedia
Condo of Mystery! is a quest in Mario Party Advance that is initiated on the Horror Condo's second floor. It starts when Mr. E asks Snifit about a mystery, to which Snifit replies if they can help him. The player can decline, after which Mr. E shifts the blame of declining the quest entirely on them, leaving Snifit disappointed or they can decide to help, starting the quest. If accepted, Snifit goes on to explain that he wants to see a ghost in the Horror Condo, which is rumoured to be haunted. They then send the player off to find a ghost; returning to the second floor has them directly tell the player to communicate with a ghost by finding a place that they frequent, hinting that they should visit Boo Cemetery. At the cemetery, the Boo there admits that he and his friends forgot to haunt it, and promise to fly there and scare its residents. At the condo, the Boos promptly appear upon the player's arrival, scaring Mr. E away and exciting Snifit, which earns the player the Porta-Gust Gaddget and ends the quest.
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