Tomodachi Life QR Codes can be Used in Miitomo

"Did you happen to have a really cool Mii or two that you had in Tomodachi Life? Did he have a cool voice and personality in your game? Did he have a cool catch-phrase? As a surprise feature of Miitomo, players can reportedly transfer their Miis from Tomodachi Life to Miitomo through the use of a QR code" — Nintendo Enthusiast.