To unlock chapters 1 to 26 in the Theater Mode :
Beat the final boss
To unlock the chapters 27 to 30 in the Theater Mode :
Complete the game
To unlock pages1 to 4 in the Fashion Gallery
Beat the final boss
To unlock the pages 5-7 in the Fashion Gallery
Complete the game
To unblock the page 8 in the Fashion Gallery
Complete the game with 100 % items collected
