Mario Kart 7 Review Fasten your seatbelt and prepare to curse out Blue Shells once more. Mario Kart 7 Review for the 3DS – Gamester81 Mario Kart 7 came out on the Nintendo 3DS in North America on December 4th, 2011. More at: http://gamester81.comFacebook: https://www.facebook.com/Gamester81FanPageTwitter: https://twitter.com/Gamester81Twitch.tv: http://www.twitch.tv/gamester81I’m on Instagram,Tumblr and Foursquare under Gamester81. Intro by …