From the Super Mario Wiki
Thwomp is a character in Mario Party Advance. He speaks in a simple fashion, saying "tanks" instead of "thanks" and "da" instead of "the", for example. Though he appears frightening, he is actually very lonely, and greatly desires friends. When the Thwomp House is entered, Thwomp introduces himself before stating that he's been robbed. Offering to help solve the crime will have him bashfully say that they don't have to, but Shroomlock soon arrives on the scene and asks what the situation is, at which point Thwomp reveals that forty coins has been stolen from him. He explains that while he was outside, his coins were stolen, though he had locked all of the doors. Shroomlock then requests for the player to search for clues in his house. After they point out that the only door is too small for Thwomp to fit through, he admits that he lied about the robbery simply for someone to care about him, since nobody ever visits him. After hearing his tale, Shroomlock offers to be his friend. After the situation is resolved, Thwomp gives the player the Eye Exam Gaddget in gratitude. The game ending states that Thwomp became friends with Whomp, and that Whomp was able to fit through the door to Thwomp's house and visit.
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