This level is an icy level that contains a few Snailicorns. To begin this level, Mario needs to move while balancing himself on the slippery ice patches. Mario can get the first Star Coin by throwing a shell at it through a small gap. The second Star Coin can be obtained by pressing a P Switch and by jumping over gaps to get to it. Soon, the player should see a Snailicorn. Mario should go past it to find the third Star Coin. To get a high spot on the pole, Mario should Wall Jump to a higher platform.
To access the red-flag exit, the player must be Shell Mario. When Mario has to Wall Jump to a higher platform to get a higher spot on the pole, he should continue to Wall Jump even higher, going above the screen. Mario should go to the left to find a pipe with bricks in front of it. Shell Mario must break the blocks to enter the pipe and to find the red-flag exit. This opens a pipe that takes Mario to World 5-Castle.
Mario should throw a shell through the small spot and to the first Star Coin. Alternatively, it can be collected by carefully jumping onto the small platform it is on.
Mario should press a P Switch and jump over gaps to get it. Alternatively, he can be Shell Mario or throw a Koopa Shell at the blocks without having to jump over the gaps.
Guarded by a Snailicorn, Mario should carefully get past it without slipping and falling so that he can get it.