Finish all 10 races in the quickest time possible. Finishing 1st will be given an upgrade, 2nd place will allow you to proceed to the next level without upgrade. Finishing 3rd will have you restart the race and more time is added.
Race to the finish as fast as you can. It's got four difficulty levels and a competitive cup with four tracks. Submit your best time on leaderboard and see how it stacks up.
