In this level you'll have to wait for blocks to rise and fall to cross between platforms while Parabones constantly chase. On the third platform you can find a Fire Flower then you have a nice little path through the lava before you reach the Green Star Ring . Wait for the blocks to reach the right side then hit the ring so you can run in a clockwise circle collecting all the coins and netting Green Star #1 safely.
On the other side you'll have to cross and dodge rotating spiked rollers. The Stamp can be found at the end of the left side, just be careful jumping back.
Just a bit further you can leap over to a Mystery Box where you have 10 seconds to defeat a Bully. Doing so nets Green Star #2 , again be careful jumping back to the rising and falling platforms. Pass the Checkpoint Flag where you can jump on Arrow Platforms that emerge from the wall, much easier than the previous platforms. Grab another Fire Flower before running on the rolling platforms. The last one has Green Star #3 on the screen side, just watch out for the second spiked roller coming around on it.
At the end you need to defeat three Bullies then use the Arrow Platforms to cap the Goal Pole.