This method is advanced and not recommended for beginners.
Frame walk up to the peak of the mountain, then slide down and bounce off a Spindrift. You'll have a ton of speed, so rebound off the course barrier and the side of the mountain a few times before being able to reach the star. Try to touch the joy stick as little as necessary, as that will decrease your horizontal speed.
0.5xA Strategy
While holding A, you can jump kick up to the are with the baby penguin then do a dive recover onto the spindrift. Because holding A causes you to fall slower, it lets you adjust your position much as you need while still having the speed needed to spin into the star.
