You start the level facing the mountain, next to a pair of trees. Climbing either of these trees lets you meet up with a Sprixie, who will let you use binoculars to survey the terrain.
Green Star #1
The top of the tree on the left (2) also contains a Sprixie with binoculars, and more importantly, the first Green Star.
Cat Goombas and Piranha Plants infest this mountain. Be careful as you advance. Next to the first Piranha Plant is a set of moving ? Blocks and a Red POW Block that will shatter anything breakable within a good distance of the block.
Stamp
The plateau above the second Red POW Block has a pair of walls that you can wall jump off of to reach the Stamp for this level.
A set of moving blocks and a Red POW Block pass by a section of wall created out of more blocks and a second Red POW Block. Destroying that wall reveals a pipe.
Green Star #2
This is a fairly easy bonus room. Hit the P Switch to cause a set of Blue Coins to appear. Collecting this set will cause a second set to appear, followed by a third set. Work fast, as the Blue Coins can disappear, stopping you from collecting the Green Star! The last set of Blue Coins might be a challenge if you’re small or lack the Cat Power-Up.
Green Star #3
You can get the final Green Star once you reach the summit of the mountain. You must have the Cat Power-Up equipped. At the summit you’ll find two spires reaching toward the sky, with a bridge leading out into the distance. Climb the spire on the left, and Claw at the Cat Wheel on the stone pillar you find. The pillar rises up, and you can climb it to reach a cloud platform with Cloud Cannon floating over it.
The Cloud Cannon shoots you into a bonus area. Hit the ? Block you see to snag a Super Star for some invincibility, then dash through the area, running through Piranha Plants and collecting Coins until you reach the end—before the Super Star wears out. Dash Panels boost you along pretty quickly, so be ready to jump gaps on short notice. A Green Star waits at the end of this area.
After crossing the wooden bridges to leave the mountain summit, you will encounter a much larger variety of Mega Piranha Plant. It takes two jumps, or two Cat Power-Up Claws, to beat him. After you do, a Warp Box appears to take you to the Goal Pole area.
