From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Sharp_Spike&oldid=2899117"
The Sharp Spike is an item in Paper Mario: Color Splash. It is first seen sitting on the Toad Professor's desk. It is given to Mario by the Toad Professor as a gift after he brings Princess back to Château Chanterelle. The Professor tells Mario that the spike is "as sharp as the spine on a Spiny." At Kiwano Temple, there is a Spiny Shell-shaped object on the door, and the spike can fit into a hole in it. When the spike is placed in the hole, the door opens.