Make your way to the area with the Yoshi egg. It's protected by a magical barrier that Kamek, the hooded enemy, is making. You'll need to destroy Kamek to access the Yoshi egg. Shoot Kamek with a star ...
The opening area has a small hill just beyond the Yoshi egg. Use the spring to get up on the hill (where the Comet Medal is) and then jump to the Green Star. You can use Yoshi to get it -- perform a ...