The primary mechanic in this level are the rooms filled with Switch Panels. You must light up these panels, either by running on them, or tapping them with the touch screen. Once all Switch Panels have been activated, the path to the next area will open. This first room is easy, with only the Biddybuds providing some resistance.
Stingbies are the primary nuisance here. When they’re out of the way, you can use the Roulette Block in peace, and get to flipping on the Switch Panels. Jump Panels launch you sky high if you jump while standing on them. Use them to reach Switch Panels that are difficult to land on. The Cat Power-Up helps immensely here.
After the second set of Switch Panels, the wall opens up to reveal a swarm of Stingbies, three Jump Panels, and a Warp Box to the next area.
Green Star #1
Don’t take that Warp Box right away! Use one of the side Jump Panels to reach the first Green Star, which is sitting on a platform above the Warp Box. You’ll need the Cat Power-Up or some very spot-on wall jumps to reach it, even with the Jump Panel’s boost.
Next is another round of Switch Panels, guarded by more Para-Biddybuds. Don’t fall into the abyss trying to reach the two Switch Panels on the moving platform!
Green Star #2
You can find a Mystery Box on the way up the Jump Panel wall after the third set of Switch Panels. Entering this Mystery Box takes you to a bonus room, where you have 10 game seconds to find a Green Star hidden among two sets of wooden crates. The Cat Power-Up lets you rip the crates apart quickly, though you can save yourself some time by focusing on the left side crates first.
Green Star #3
The third Green Star takes place on another Switch Panel puzzle, with the added interference of a Magikoopa. You’ll have to use a moving bridge made of Switch Panels to safely retrieve the star.
Stamp
The Stamp is in the same area as the Goal Pole. You can reach the Stamp easily with or without triggering the Switch Panels by using the Cat Power-Up. Players without the Cat Power-Up can still collect it with a well-executed wall jump.