In PROFESSOR LAYTON AND THE SPECTRE'S CALL
Using the same Nintendo 3DS/ Nintendo 3DS XL system as in the first step, start up PROFESSOR LAYTON AND THE SPECTRE'S CALL (Nintendo DS™ software). In the Bonuses section, select TOP SECRET and then THE HIDDEN DOOR. Here, you can enter the password that you noted down in
the first step.
This will unlock extra content for this game and give you a password to use in PROFESSOR LAYTON AND THE MIRACLE MASK. Write down this new password.
Back in PROFESSOR LAYTON
AND THE MIRACLE MASK
Again using the same Nintendo 3DS/ Nintendo 3DS XL system as above, start up PROFESSOR LAYTON AND THE MIRACLE MASK, then return to the Hidden Door section and select THE SPECTRE'S CALL. You can now enter the password acquired in the second step to unlock this content!
♦All three steps explained above must be executed using the same Nintendo 3DS/Nintendo 3DS XL system or the passwords will not work.