Thwomp House

From the Super Mario Wiki

The Thwomp House is a location found in the game Mario Party Advance. It is located in the Town Area of Shroom City.

When the player decides to stop here, they will meet Thwomp, who has just been robbed of forty coins. His quest, Weeping Thwomp, is a mystery where Shroomlock comes in to help. After Thwomp gives him the details, Shroomlock asks the player to search around the house for some clues. When the player is done, Shroomlock will ask which clue points to where the thief might be. Solving the case will reward the player with a Gaddget, Eye Exam.