Gusty

Gusties are long, smiling ghost-like creatures in Super Mario World 2: Yoshi's Island, Yoshi's Island: Super Mario Advance 3, Yoshi Topsy-Turvy, Yoshi Touch & Go, Yoshi's Island DS, Yoshi's New Island and Yoshi's Woolly World. They always travel in huge packs, allowing the Yoshis to eat them and get extra eggs. They can be used as stepping stones to reach higher areas. In addition to possibly knocking the baby off Yoshi's back, they can spawn endlessly in some areas.

They appear in levels where the terrain is bumpy and uneven. Gusties are prominently featured in the levels What's Gusty Taste Like? and Gusty Glory.

In Yoshi's New Island, their model is shown to have two faces on both sides. This is likely due that their model were intended to be shown on the sides in-game.

In Yoshi's Woolly World, Gusties are made from a spiral of string, which can be eaten by Yoshi to create a Yarn Ball.