Unlockable--> How to Unlock
Ghost Ship level --> Complete the game, and save when prompted. Now go to your ship and look at the map, you will see the new level
Captains Clothes --> Complete the Ghost Ship
Dolgen Edge --> Complete the Ghost Ship
Key of the Underworld --> Answer the questions in the Seventh Mystery correctly
Ghost Ship Extreme level --> Use the Key of the Underworld
Kisaras Swimsuit --> Complete Ghost Ship Extreme
Truth of the King --> Complete Ghost Ship Extreme