Gleam Glacier 6-1
From the Super Mario Wiki
The level starts out next to a snowman, that can be destroyed for coins, and a Green Paratroopa. Midway through this area, the player can fall in between a gap in between platforms, and go up a Warp Pipe to a secret area. In this area the player needs to go through a passageway that has various icicle that can cause damage, at the end of the passageway is a green ball that needs to be used to bounce up onto some platforms, if the player goes to the right and drops down, they can find the music for Wavy Beach 5-2. In the main room, continuing to the right will lead to the Warp Pipe.
The next room has Donut Blocks suspended in between platforms, the player must get the Donut Blocks to drop to navigate through the room. If they use the Donut Blocks third from the left, then they will be able to find the first Toad, and get to the next area. The next area starts off with a Toad, the player must use the Gloom vibe to freeze the area around them, and then slide over it to get to it. The player then needs to head to the right to progress though the area. Just before the Warp Pipe to the next area, if the player heads to the left and uses the Rage vibe, they can melt some Icicle Creatures and get the final Toad.
The Warp Pipe leads to the upper portion of the secret area, if the player travel to the left they will find a Warp Pipe. This Warp Pipe leads to an area where the player must use the Gloom vibe and push a block over the ice they've created to destroy some ice blocks. In the previous room, the Warp Pipe at the bottom leads to the next area. In this area, is the minigame Toad Shot, and the goal gate.