 On the 3DS and Wii U, user accounts are associated with a Mii as their avatar, and used as the basis of the systems' social networking features, most prominently the now-defunct Miiverse.On the Nintendo Switch, a Mii can still be used as an account avatar, but avatars depicting various Nintendo characters are also available.However, games such as "Mario Kart 8 Deluxe", "Go Vacation, Super Smash Bros.