Soarin' Stu is a flying version of a Strollin' Stu. It's first appeared as an enemy in Super Mario Sunshine. They simply had to stomped on to defeat. If they were to high you could make them go down by squirting them with water and then simply step on. They reappear in the game New Super Mario Sunshine where they are enemies, but could also be useful by being used as platforms to make it through certain areas. They are also enemies in Super Mario World: Wii.