Yoshi Helicopter is one of the forms the Yoshis can take in Super Mario World 2: Yoshi's Island and Yoshi's Island DS. It makes Yoshi fly for a short time if you touch a Morph Bubble with its picture on it. It can be controlled by the D-Pad. When this power-up appears it allows Yoshi to patrol the skies, often in the search of coins, flowers and secret paths.
As Yoshi Helicopter, Yoshi can fly around the level until he reaches either the Yoshi Block or runs out of time. In the event of the latter, Yoshi will stop moving forward and spiral backwards until he finds himself back at the Morph Bubble should this happen.
In Mario Kart: Double Dash!!, a Yoshi Helicopter makes an appearance in Baby Park and Yoshi Circuit. However, this is an actual vehicle rather than a transformed Yoshi.