Third Course (Platform Panic Pack)
From the Super Mario Wiki
The level begins with some Big Dry Bones and a Warp Pipe which Mario must enter to ride the same bone coaster he rode in World 6-2. From there, he must evade Bullet Bills and Buzzy Beetles falling from the ceilings. After the Checkpoint Flag, Mario must evade the fireballs from Bowser sculptures as well as some Banzai Bills. After yet another bone coaster, another Warp Pipe leads directly to the Goal Pole.