The player can send letters to many Final Fantasy III denizens, such as Princess Sara or Cid. It is through Mognet that the player can unlock the bonus dungeon and the secret Job class. Mognet works a little bit differently for the iOS, PSP and PC versions, the letters unlock at certain points over the course of the story. The player will have to read the new piece of mail at a moogle found in towns before getting the next mail.