Leo's Fortune

Completing 2.5 laps on this level is likely going to seem pretty tough at first, but it really comes down to mastering the controls and maintaining momentum as you move around the course. Puffing up and sinking down at just the right time is what's critical to keeping a high speed going throughout the course. You also have to get used to when to switch from holding left to holding right, such as when you're moving left and go into a curve that tosses you off back to the right. You need to hold left the entire time you're in contact with the curve and then switch to holding right as soon as you break contact. It's also worth noting that you should try to stay in contact with the curves as long as possible to keep moving at full speed. 

I have included a video below to show how it's done, but just realize it's going to take a decent amount of practice and getting used to the controls and timing. Just watching the video won't be enough. Full credit for the video to its creator.