This level serves as a mini-Castle and thus has no Checkpoint Flag. From the get go jump up and grab Green Star #1 then the Fire Flower on the way down. Shoot the Conkdors and Bullies with some Fireballs to make it across this car easily. You’ll come to another car with some water, use the POW Block to defeat the enemies then hope out to a car with spikes. Hit the Green Star Ring early so can grab the ones at the left quickly and acquire Green Star #2 .
Now, you need to ride the Horned Ant Troopers up the side of the wall unless you have a Cat Suit so you can get the Stamp . If you fail to do this head inside the car and ground pound a ? Block that will raise you through the roof. The front car is guarded by a Hammer Bro and Fire Bro, defeat them and get Green Star #3 from the undercarriage before entering the pipe to the boss battle.
Boss: Pernicious Pom Pom
Pom Pom makes a return with more and more clones this time. Unfortunately for her, that pink ninja star gives her away every time. Jump on her head three times after dodging her clones for an easy victory.
Take the trip to the Goal Pole and derail this train.