

When Mario takes on a trouble, there is no time limit for when it must be finished. Completion of all troubles yields no special reward, so it is possible for the player to pick and choose which troubles he or she would like to complete while omitting the more tedious or undesirable ones. Troubles are completely optional, as Mario can finish the game without setting foot in the Trouble Center, although he will miss out on several good rewards if he does not. Every time Mario completes another chapter, more troubles will be added to the list. However, rather than completing the troubles in order, Mario can pick and choose the troubles he wishes to do from a list. Troubles are sidequests, much like the favors that Koopa Koot recruited Mario for in Paper Mario.


These rewards are determined by the person who posted the trouble and ranges from different amounts of coins to specific items. Once Mario successfully completes trouble, he will receive a reward. Inside the building is a bulletin board where various characters will post particular troubles that they need someone's assistance with, such as bringing someone a requested item or making a delivery. The Trouble Center or Trouble Centre is a building found during the events of Paper Mario: The Thousand-Year Door,
