Dissidia: Final Fantasy Cheats

At the main menu go to Multiplayer (3rd option). Choose the third option then the 2nd option. You will be taken into your Friend Card edit menu. Type "PASS3CH3GC45" (without quotes) using the fourth character set. There are two English character sets, but pick the second English one by pressing Select three times. This will unlock a Yuffie Friend Card, which includes a Lv45 Cloud ghost.

Go to Communication mode, then friend card settings, choose to edit your message. Clear all the text and type in PASS3SU433KA, then exit the lobby. This will unlock the Behemoth friend card. Another password, 33MKERDTA2AK, will allow you to unlock the 'Aries Recipe'. This will let you make the miracles shoes. You will be able to fight a level 24 Ghost of Cloud of Darkness and a level 74 ghost of the Emperor.