This page contains Professor Layton And The Diabolical Box Unlockables for Nintendo DS called "Art Gallery" and has been posted or updated on Aug 27, 2009 by amy_lee_rocks!. Let us know what you think of this Unlockable by thumbs voting.
After beating the game, go to the Top Secret section of the Bonuses menu. You'll be able to access an art gallery depicting various scenes from the game.
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