Sun Stone

The Sun Stone is a stone shaped like the sun that appears in Paper Mario: The Thousand-Year Door. Along with the Moon Stone, Mario needs the Sun Stone to gain access to Hooktail Castle. Both the Sun Stone and the Moon Stone are located in Shhwonk Fortress and are protected by Fuzzies.

Mayor Kroop refers to the Sun Stone and the Moon Stone collectively as stone keys.

Names in other languages
Sonnenschlüssel Chiave Sole