This is the best video for helping.
Tips:
1. don't try to pass her at first. If there's balloons all on the left side of cliff, you lost. If there's balloons all on the right side of the cliff, you can win it more easily. Don't try to pass her, until you grab the ballons on the right, because if you do, she'll push you and you'll be behind her. Always try to stay in the lead.
2. HAVE THE LEAD AS YOU GO AROUND THE CLIFF.
3. Try to hit as many balloons coming out of the cliff turn as possible without getting hit.
4. This is where you start dodging birds. Hold the d-pad right to avoid them. You need wide girth to avoid because the game is distinguished mentally-challenged and makes the shadow on the right an invisible border, so if you're trying to avoid them and you have no more room, you'll get hit.
5. Weave in and collect more balloons, then hold right.
6. You're going to make another turn, make sure nothing hits you out of fucking nowhere, so make the on the edge of the shadow.
7. Going straight, start on the right side, here you're going to be dodging birds as you go to the LEFT.
8. Pick up as many balloons as you can.
9. Pray you picked up at least 13-14 balloons.
10. Get to the finish line at about 35-36 seconds.
It's all luck because the game places balloons in a very random manner each and every fucking time. So sometmes, you'll get there at 35 seconds and still have only 9 balloons and even with zero hits, you can't get 0.0 with that.
Whoever designed this should be fired and they are a bloody masochist.