Kingdom Hearts: Danville

Sora, Donald and Goofy land in Danville in their journey to stop the evil Heartless. They meet Phineas and ferb building a roller coaster, and they guide them to the next keyhole in the googoplex mall. However the Heartless sense Candace's jealousy and hate of the boys, and turns her into a Heartless. A dark powered Candace kidnaps all the kids in the neighborhood, including Isabella, Baljeet, and Buford and sends the Heartless after Phineas and Ferb.