StreetPass Mii Plaza was created on 2011-02-26.
StreetPass Mii Plaza happened in 2011.
Find Mii/Streetpass Quest (depending on the region you are in) are installed onto a 3DS by default, they're part of the Mii Plaza.
The 3DS' 'main' mii is used on the friends list and Letterbox for example, but you can specify a different one for the streetpass games on the Mii plaza.
Mii Plaza is for Streetpass content. When you pass by another person with a 3DS, the two systems will exchange data, and their Miis will show up at the plaza. Each Mii can be used to play the Mii plaza games, 'Puzzle Swap' is the default game, though more can be purchased.
Some things I know are: Streetpass Mii Plaza, Super Mario 3D Land, Swapnote, and the Nintendo 3DS Sound
The number keeps growing but tag a special mii and I'm pretty sure that that's the full total (so far)
For getting extra options in games (like in Augumented Reality) or for StreetPass Mii Plaza for carrying on the game(s).
Complete Find Mii
Complete Find Mii.
In order to increase the level of Miis for Streetpass Find Mii, you need to streetpass the same Mii more than once. The number of times streetpassed is directly proportional to the level of the Mii up to Level 7.
You can buy one (2 playcoins each) or you can get them by doing streetpass with people (1 piece from each person)
its when you meet someone elses mii in the 3ds