Retro Game Cheats for Professor Layton and the Diabolical Box (Nintendo DS)
Effect: Unlock: Golden Layton
Effect: Unlock: Layton's Challenges: The Sweetheart's House
Effect: Unlock: Character Profiles
Effect: Unlock: Character Voices
Effect: Unlock: Golden Luke
Effect: Unlock: Art Gallery
When:
During the Game
How:
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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Effect: Character Profiles List
When:
During the Game
How:
After you've beaten the game, go to the Top Secret section of the Bonuses menu. Inside, you'll be able to access profiles for every character in the game
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Effect: Unlock: Game Music
Effect: Unlock: Movies
Effect: Unlock: Story Art