If you play the North American version of Paper Mario: The Thousand-Year Door, then you're missing out on an outright murder mystery. Apparently the localization team at Nintendo of America didn't think that murder in a Mario game was appropriate for the franchise's young, impressionable audience, despite the fact that they left in a hangman's noose at the start. 

In the Japanese version of the game, we don't see a murder. We just see the telltale signs of a murder crime scene. Rogueport is a rough town, as you might surmise from its name, and in a back alley shed behind Podley's juice bar, players find a mess. Inside, the floor is covered with paper and overturned furniture. For Americans, that's all there is to see. In Japan, there was a chalk outline of a Toad, complete with a pool of blood in the dead center of the shed. The international version of the game effectively covered up a murder.