checked-no IMPORTANT NOTE: If you exit StreetPass Mii Plaza without using new traveling Miis in FindMii or Puzzle Swap, you will NOT be able to use them the next time you load up Mii Plaza. Once you open Mii Plaza with new Mii visitors, you MUST use them before exiting the program. =>FindMii Hats: As you progress through FindMii, you'll unlock hats for your Mii to wear in the Mii Plaza. You'll need to complete FindMii twice to unlock all of the hats. =>FindMii Speed Boost: Hold [R] to speed up the game's progress, especially on the map screen. =>Puzzle Swap: While you can use Play Coins to unlock new pieces, the new pieces will only be for puzzles you've already unlocked. You'll start with one unlocked puzzle, but there are six other puzzles available. These puzzles can only be unlocked using StreetPass. Whenever a new traveling StreetPass Mii appears and you access them in Puzzle Swap, you'll have the ability to take a puzzle piece from ANY of their puzzles; if you want to unlock new puzzles more quickly, be sure to choose a piece from a puzzle you currently do not have. Note that your starting puzzle is assigned based on your local region. For the USA, this is based on your state.