Transformation Door

Transformation Doors are objects found in Yoshi's Woolly World and its Nintendo 3DS port, Poochy & Yoshi's Woolly World. They are similar in function to Whirly Gates from Yoshi's New Island; as their name implies, they transform Yoshi while transporting him to another part of the level. Many of these sub-areas often contain stamps, Smiley Flowers, and Wonder Wools.

Transformations

 * Umbrella Yoshi
 * Mega Yoshi
 * Moto Yoshi
 * Mole Yoshi
 * Sky Pop Yoshi
 * Mermaid Yoshi

Yoshi's Woolly World / Poochy & Yoshi's Woolly World

 * Instruction manual description: "Passing through one of these doors will temporarily transform Yoshi."