When a Yoshi hits a Winged Cloud with a Yoshi Egg, it disappears and reveals its contents or triggers an effect. Winged Clouds can contain objects such as flowers, five Stars, Extra lives and ! Switches, but sometimes also creates stairs or bridges or makes coins appear instead of revealing an item. There are Winged Clouds that contain even Bandits. When being hit, a Bandit pops out and chases Yoshi around to steal Baby Mario. Due to their function, they can be considered Yoshi's Island's equivalent to ? Blocks. There also exists a Special Item in Super Mario World 2: Yoshi's Island called a Winged Cloud Maker, which turns enemies into Winged Clouds.
Winged Clouds appear in volume 14 of Super Mario-Kun, also providing items when they are hit, such as a blue watermelon. Unlike in the games, however, Yoshi does not need to hit them with an egg to make them spawn items.