|"A key to a door in the Pit of 100 Trials."|
|First appearance||Super Paper Mario (2007)|
A Pit Key is an item found in Super Paper Mario. Pit Keys are found in the Flipside Pit of 100 Trials and the Flopside Pit of 100 Trials. In each room with normal enemies (i.e. rooms 1–9, 11–19, etc.), a Pit Key is held by a random enemy in the room. The player must defeat the enemy and use the key to unlock the door that leads to the next room.