To unlock Solo Voyage mode, successfully complete the game under the Euridice or higher difficulty setting.
Destiny 13 mode:
Unlock the Fool special doll to unlock Desinty 13 mode.
Fight Kreutzer under Euradice difficulty:
To Fight Kreutzer under the Euradice difficulty setting, collect 112 dolls before you get to the final stage. Note: This cannot be done in Solo Voyage or Destiny 13 modes.
Unlock the following dolls for purchase by performing the corresponding tasks:
DOLL - HOW TO UNLOCK
Fool - Complete the game four times time under a new difficulty setting, or in Solo Voyage mode with a doll you have not completed with yet.
Fourtuner - Complete the game three times time under a new difficulty setting, or in Solo Voyage mode with a doll you have not completed with yet.
Lovers - Complete the game two times times under a new difficulty setting, or in Solo Voyage mode with a doll you have not completed with yet.
Platina - Complete the game under the Euridice or higher difficulty setting; costs 1,800.
1 in 64's Not Bad - Use the Sphere 13 doll.
Doll Collector - Have 12 of every standard doll at one time.
Even If The World Ends... - Finish the game on Doomsday difficulty.
Genoremasody's End - Finish the game on nobilmente difficulty.
I Can Do It! - Finish the game on Euridice difficulty.
Loner - Finish the game in Solo Voyage mode.
No Cheap Tricks - Finish the game without using any bombs.
No, YOUR Time's Up! - Defeat a boss after time has run out.
The Rose Cross - Finish the game on Allemande difficulty.
Destructive - Destroy every part of every boss in one game.
Endless Possibilities - Finish the game in Solo Voyage mode with every doll.
Phantastique Tea Party - Defeat the true last boss.
Not An Unlucky Number - Finish the game in Destiny 13 mode.