Mario Kart DS is a new game on the Nintendo DSi system that is available to play online. It is a puzzle game on theakespearian scale with many races on a large map. The player chooses one of several characters to race against and uses their Nintendo DSi to drive their character around the screen. The goal is to cross the finish line first, then use your characters' abilities to win the following races. This game is very exciting with many challenges to overcome and is a hit with players of all ages.