The first Star Coin is floating at Point 1. Deactivate the nearby burners, then use them to reach the Star Coin.
The second Star Coin is located through the door at Point 2. Ground pound the burner along the left wall, then drop down and enter the door.
The Star Coin is at the top of the room. To reach it, you must jump up along the scattered Blocks and burners. The burners erupt at regular intervals, so watch out for their flames. Climb up along one of the walls, then hop over to the burners directly below the Star Coin.
The third Star Coin is located in a hidden area. As the platform carries you to Point 3, look for the green pipe embedded in the right wall. Deactivate the burner as you pass below it, then jump onto it and enter the pipe.
The Star Coin is on a ledge at the top of the room. To reach it, you must jump along the burners that fill the room. The burners erupt at regular intervals, and each one moves along a small circular track. Collect the Star Coin from the ledge to the right, then exit through the pipe to the left.
The final chamber contains four Reznors on a single large wheel. Stand on the floor and take out each enemy that passes over you. When the floor starts to crumble, jump to a vacant ? Block and finish off the remaining Reznors.