Friend or Foe? (Yoshi's Island DS)
From the Super Mario Wiki
The level starts in an outside snowy area with Piranha Plants and a few ice blocks for Baby Bowser to melt. Yoshi must move under a platform on the main path by defeating a few Piranha Plants and entering a pipe. The pipe leads into a cave area where the player needs to defeat all of the Piranha Plants to get a Flower. Yoshi then exits through the same pipe.
Yoshi enters a pipe at the end of the first area into another cave area. Some torches have to be lit as the area gets darker. There is water at the bottom to swim back if Yoshi falls. The next area has more torches to light, but they are not necessary to see the area. Nipper Plants and Shy Guys inhabit this cave. Yoshi comes out of the cave into another snowy area with the goal at the end.
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