The Wind Planet Skyhigh is the sky star in Milky Way Wishes. It's considered by most to be the third planet, following Aquarius and preceding Hotbeat. Skyhigh is completely made of clouds, and has similar structures and plant life as Bubbly Clouds. The planet features two main areas, a long, straight forward room and a series of small, themed rooms with two or three doors each that join up to create a large maze. The planet also features a large cannon, which (if the player has done the planets in order) the player must light with Jet.
Due to the way copying abilities works in Milky Way Wishes, abilities can only be obtained from enemies using the Copy ability provided by the Copy Copy Essence Deluxe (though there are a few exceptions).