The ultimate optional challenge in Paper Mario: The Thousand-Year Door is the Pit of 100 Trials. To complete this area, you must defeat 100 enemies. The last enemy is the boss, Bonetail. You can't save throughout the entire Pit.
The ultimate optional challenge in Paper Mario: The Thousand-Year Door is the Pit of 100 Trials. To complete this area, you must defeat 100 enemies. The last enemy is the boss, Bonetail. You can't save throughout the entire Pit.