At the start of the level, the Green Yoshi fills up with eggs using an Egg Block as it begins to snow in the background. After evading the first and only Thunder Lakitu, the Yoshi breaks its way through some rock blocks with a Ground Pound and retrieves a Flower.
In the next area, Yoshi can collect many coins floating in the air, including a red one held by a Fly Guy, who will strangely not fly away when approached. After dodging a Spike, the Yoshi enters the next area and ascends a cliff guarded by Woozy Guys, Shy Guys and another Spike. Here, Yoshi can obtain a Key by breaking open a certain Crate, and then refill on eggs with another Egg Block, all the while collecting more coins. Two Wild Ptooie Piranhas guard the passage to the next area by spitting Needlenoses at the Yoshi, who can easily defeat them using its eggs.
Now at the slopes, Yoshi is met with coins, a star-filled Winged Cloud, and many rolling Chomp Rocks that threaten to push the dinosaur into the bottomless pits. The next area presents more obstacles, such as Wall Lakitus, a single Shy Guy, and more Chomp Rocks. After collecting a second flower, Yoshi proceeds to the top area, which is filled with Bumpties, and a locked Cabin (containing the mini-game Throwing Balloons), which Yoshi can enter using the Key he previously retrieved. As well as the cabin, this area has more rolling Chomp Rocks, a Warp Pipe accessible via. the clouds on the left-hand side, and a Door.
If Yoshi uses the Warp Pipe, he will come to an area filled with Yoshi Eggs and coins, including five Red Coins that can only be retrieved if Yoshi turns into the Helicopter morph, the block for which is hidden in a ? Cloud (as explained in a Message Block). Once the time runs out, Yoshi can leave using a different Warp Pipe, and continue on with the main level by using the Door. Now in a cave, Yoshi can use Special Blue Watermelons to fight the many Lantern Ghosts and burst more ? Clouds to increase his Star Power. After passing some Bumpties, Yoshi reaches a Middle Ring, some coins and an Egg-Plant that will refill his egg supply.
Deeper in the caves, there are more Bumptys, Fangs and Ice Stalagmites that can sometimes break and fall to the ground when Yoshi approaches. There are also more ? Clouds containing stars and the third Flower, and some coins. At the end of the area, there is a Warp Pipe the Yoshi proceeds into the outside, where it is snowing. To the left is a Whirly Fly Guy that can be hit with Watermelon seeds for coins and extra lives. To the right are Bumpties, Fly Guys holding Red Coins, ? Clouds, and the fourth Flower. Past a pole that can be Ground Pounded for a Red Coin are strange enemies that are playing with Neednoses, a Wild Ptooie Piranha, Thunder Latikus, the fifth Flower and more coins, some produced by ? Clouds.
Here the Yoshi finds a vacant Lakitu's Cloud, and uses it to fly up to a Warp Pipe, leading to a cloudy area (where it is not snowing) with some coins, and two Red Flower Petals that can be activated by two different colored Koopa Shells. After this part, Yoshi returns to the ground and the last area, where another stationary Fly Guy can be defeated for a Red Coin. An enemy that looks similar to a Flower will then attack Yoshi, who will need to ignore flying Bumpties and dodge a Piranha Plant that is guarding a Jump Ball, which will bring the ! Switch down. If stepped upon, ! Blocks appear and Yoshi has a time limit on finding the hidden Red Coins safely, before proceeding to the end of the level.
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