Top Secret Options
Once you acquire enough Picarats, you unlock the following options in the top secret section.
| Unlockable | How to Unlock |
|---|---|
| Additional Character Profiles | Solve all 168 Puzzles |
| Character Profiles | Acquire 4200 Picarats |
| Character Voices | Acquire 5000 Picarats |
| Game Music | Acquire 4700 Picarats |
| Movies | Acquire 5200 Picarats |
| Story Art | Acquire 4500 Picarats |
The Diabolical Box Reopened Puzzle
After you've completed Professor Layton and the Diabolical Box, you'll be given a special code. These codes are unique for each DS system. Copy down that code, access the Top Secret bonuses of Professor Layton and the Unwound Future, select the Hidden Door menu, and input the code. You'll unlock the Diabolical Box Reopened Puzzle, an extra challenge that features the antagonist from that game.
| Unlockable | How to Unlock |
|---|---|
| The Diabolical Box Reopened Puzzle | Complete Professor Layton and the Diabolical Box to obtain a code, then input the code in the Hidden Door menu of the Unwound Future. |
Layton's Challenges
They are found under the bonuses section. Each one has a different way of being unlocked.
| Unlockable | How to Unlock |
|---|---|
| The Puzzle Keeper's House | Complete 165 puzzles. |
Layton's Challenges
Layton's challenges are the hardest puzzles in the game. They are found under the bonuses section. Each one has a different way of being unlocked.
| Unlockable | How to Unlock |
|---|---|
| The Hotelier's House | Beat all ten toy car courses. |
| The Messenger's House | Complete all 12 parrot delivery errands. |
| The Storyteller's House | Complete all three picture books. |
| The Time Traveler's House | Beat the game. |
