Finish the main story.
Win your first battle.
Unlock the 2nd character.
Unlock the 3rd character.
Unlock the 4th character.
Unlock the 5th character.
Unlock the 6th character.
Unlock the 7th character.
Unlock the 8th character.
Unlock the 9th character.
Obtain your 1st legendary card.
Get a character to level 40.
Complete all three parts of the Mysterious Pieces questline.
Gather all of Wentz's journal entires.