An unlockable character ( also referred to as a secret character newcomers in the N64 game' s Backup Clear menu) is one that is not available at the start of the game ( unlike a starter character), in- game as challengers, hidden character but instead must be received in- game ( unlike downloadable characters) through other means. Review Mario Kart 7. A Mii ( / mi/ ) is a customizable avatar used on several Nintendo video game consoles and mobile apps. How to unlock mii character in mario kart 7.It' s hard to believe that it' s been almost two decades since Nintendo first unleashed the original Super Mario Kart on gamers back in 1992. Mario Kart 7 It' s a New Way to Race with Friends The best part of the Mario Kart 7 game is getting the chance to race with your friends. You' ve got Baby Mario in Mario Kart Wii, but what' s the point if he can' t race against his baby brother? A Wired interview of Katsuya Eguchi ( producer of Animal. Baby Luigi is one of the most difficult characters to unlock in the game, mainly due to. Miis were first introduced on the Wii Wii U, Nintendo Switch , later appeared on the Nintendo 3DS various Nintendo smart devices. The Mii Channel is an avatar creator where users can design 3D caricatures of people called Miis by selecting from a group of facial bodily features. Unique criteria must be met in order to unlock each.