"A key to a door in Yold Ruins."
|First Game||Super Paper Mario|
|Effects||Unlocks doors of Yold Ruins.|
|Notes||There are three in total.|
The Ruins Key is a key item that appears in Super Paper Mario.
Ruins Keys are only found in Yold Ruins and there are three of them in total. One is in a small room with two Spiky Tromps that requires the Flip technique to get to, another after hitting a switch with a Squig, and the third is found behind a large staircase requiring the Flip technique to get to. All of these keys unlock the locked doors of Yold Ruins.