I need help ASAP, I can't figure out how to beat "watch for rolling rocks..

First, play as Wario, and if you don't have him, play as any character. Now start the level. If you don't have Wario yet, then snag the yellow cap on the Goomba located just to the right when you begin the level. Then go back through the left fork and Long Jump across the chasm. Go through the door, then get over to the path where the rocks are rolling down. As Wario, punch the big rock sas they come after you. You need to hit 5 of them to get a star. To ease things a little, go to the left of the path where the rocks are rolling and punch the black brick block (toungue twister, lol). A Super Mushroom should come out. Grab it, and then go to where the rocks are. When a giant, you don't need to punch the rocks. All you have to do is obstruct their path, and BOOM! Into oblivion goes thee.

Go there with Wario, their should be a brickblock somewhere around there. Hit it and you'll turn giant and you will be able to smash the rocks, a star should appear then.