The level begins in a short area with a door at the end and a small dip in the ground. Going through the door leads to the other side of the level, where there is a jumping Little Mouser and some sponge. Ground Pounding the sponge opens into a cave with a wire fence and an Egg Block. Through a door is a pipe where Little Mousers come out of. Ground pound on more sponge and a similar area will be next. Through yet another door the cave changes from blue to red, and there is a long area of sponge. Go through it and there will be an area with some flippers and a Spring Ball. The player must go through the left door to get to progress in the level. Once through, jump up into a small area with platforms that lead to the checkpoint and a Whirly Gate with a Yoshi Transformation: Mole Yoshi. In the transformation area, there are Tap-Taps, lots of Beads and rocks that can be dug through. After the transformation, there is a large stone area with moving blocks. Go up through this area until there is two red blocks. Jumping on them reveals two hidden platforms. Filling them in leads to a large Spring Ball which goes out of the cave. On the surface there are lots of Little Mousers that follow you to the end of the stage.
Collecting all five Wonder Wools in this level unlocks Cinnamon Yoshi.
This level has a Yoshi transformation - Mole Yoshi. Next to the first checkpoint, there is a Whirly Gate, which (when entered) will transform the player into Mole Yoshi and take them to a special bonus room, which (when completed) cannot be re-entered.
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