If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Super Mario Racing 3
X to use turbo.
Space bar to use power up
Mario is back in an online version of Mario Kart! Race around the levels as all of your favourite Super Mario characters such as Yoshi, Bowser, Mario, Luigi and more! Blast back the other racers and come out on top, complete the level as first place to win.