In this level you’ll be introduced to Ant Troopers, an enemy that cannot be defeated by jumping on it’s head but can be clawed. They follow a set pattern for the most part, always walking in the same direction. The block at the entrance is just a few coins but you can certainly climb up to it. At the back wall break the ? Block for a Super Bell that immediately comes in handy.
Climb up the wall, following the path and avoiding the Ant Troopers; the Horned Ant Troopers are also pretty annoying but have the added feature of damaging you should you jump on it’s head. At the top enter the cave filled with Ant Troopers. Midway through is a ledge with plent of Ant Troopers. Defeat them then ascend to the Stamp , but ignore the Crystal Blocks on your way out for now. Climb the wall at the end of the path instead of crossing the bridge, you’ll find Green Star #1 resting atop.
Go back to the Crystal Blocks now and break them to reveal a Super Star . Now cross the bridge defeating as many Horned Ant Troopers as possible on your way to the Checkpoint Flag . Ahead you’ll find Big Ant Troopers and you need to ride them to cross the spikes. Jump onto the ledge when you reach it, then into the pipe to a new area. Jump up the Ant Troopers or climb up the wall to get Green Star #2 then exit. Continue to ride the Big Ant Troopers over the spikes, jumping only to get Green Star #3 as you reach the end of the trail.
If you miss the jump up don’t worry, you can slide down the wall to the right for a ton of coins and then reach the Goal Pole area. You don’t need the Cat Suit to reach the top of it, but it sure does help if you aren’t good at bouncing off the Ant Troopers.