Mario Kart DS is a racing game eveloped and published by Nintendo for the Nintendo DS. It is the fifth installment in the series and the first to use Nintendo's free online service, Nintendo Wi-Fi Connection. The game was released in the North America, Australia, and Europe in November 2005, and in Japan in December 2005,[dead link] and in South Korea in which it is the very first Wi-Fi Connection game launched in April 2007. It was well received critically, scoring an average of 91% from Metacritic.