Mario Kart: Double Dash is a 2003 kart racing video game developed and published by Nintendo for the GameCube. It is the fourth main entry in the Mario Kart series. Similar to previous titles, Double Dash challenges Mario series player characters to race against each other on 16 Mario-themed tracks. The game introduced a number of gameplay features, such as having two riders per kart. Double Dash released in November 2003 and received positive reviews from critics. It attained an aggregated score of 87 out of 100 on Metacritic; reviewers praised the graphics, new gameplay features, character and item rosters, arcade aesthetic and track design, but the audio received mixed reactions. It was commercially successful, with more than 3.8 million copies sold in the United States, and more than 802,000 copies sold in Japan. It is the second best-selling GameCube game of all-time, selling around 7 million copies worldwide, behind Super Smash Bros. Melee.