The Flopside Pit of 100 Trials is an optional challenge of 100 rooms in Super Paper Mario. The Pit is made up of 90 regular rooms, where you will need to find the key to the next room by defeating enemies, one of which will have the key before 5 minutes pass, 9 "Checkpoint rooms", where there will be a treasure, a pipe leading out of the pit, and a door to the next room, and room 100, which is the boss room.