Green Star #1
There’s a Green Star right next to where you begin this level. You have to drop down to a red platform, then wait for the lava to rise up and take you high enough so that you can pick up the star. Watch out for the Fire Piranha Plant shooting at you from a separate platform.
Green Star #2
You now need to reach the pillar across from where you started. While the lava is lowering, you can drop down and enter a small alcove to collect the second Green Star. Run back toward one of the red platforms so the lava doesn’t get to you!
Green Star #3
Use the GamePad microphone to raise the Propeller Platforms to avoid the lava, and then pick up the third Green Star.
Green Star #4
Another Propeller Platform takes you to a Donut Block bridge where the fourth Green Star awaits. Scramble over to the walkway in front of the Fire Piranha Plant, and make your way over toward another Propeller Platform.
Stamp and Green Star #5
You pass dangerously in front of the Fire Piranha Plant on the way to a Propeller Platform that can take you up to the cloud where you can get the Stamp. With that done, drop down the hole at the center of the cloud on top of the Fire Piranha Plant, and collect the fifth Green Star behind it.