Find Mii (known as StreetPass Quest in Europe) is a new stage that is exclusive to the 3DS version of the game. It is based off of the final level in Find Mii II (StreetPass Quest II), which is the ruins on top of the Castle of Darkness. The King Mii and Dark Emperor appear in the background of the stage.
The stage itself is split into two main platforms, with the one on the left being bigger and the one on the right being raised slightly more, as well as a large gap in between the two. The Dark Emperor will sometimes come into the foreground, causing status changes based on a fighter's color, although it isn't known what this does yet exactly.
