Mario Racing Tournament, a cool addictive Mario kart game. So no you can play mario kart online and it for free isnt cool? On the background you will hear one of the popular Super Mario ringtones (you can mute it on the icon). You can earn money, by collecting the coins. With the money you earn you can buy cool upgrades in the shop. If you like Mario computer games you will love this racing game. Start the race racing against your opponents, also popular mario characters. Not really a speedway racing game, but more of a platform race game. The shop has cool upgrades to make your kart faster.