From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Giant_Stu&oldid=2555443"
Giant Stus are enemies in Super Mario Sunshine, and a large variant of the Strollin' Stus. One appears in Pinna Park, while multiple others appear at Delfino Airstrip after the flood, alongside regular Strollin' Stus. They act exactly like normal Strollin' Stus. The one in Pinna Park is at the bottom of a Stackin' Stu. When it is defeated, all regular Stus that make up the rest of the Stackin' Stu will also be defeated. They are immune to being turned into a Yoshi Platform.