Professor Layton and the Diabolical Box

 (knwon as Professor Layton and Pandora's Box in PAL regions) is a puzzle game developed by LEVEL-5 and released by LEVEL-5 on November 29, 2007 in Japan and by Nintendo on August 24, 2009 in North America and in September, 2009 in Australia, Europe and Korea for the Nintendo DS.

The game featured additional weekly puzzles, which were released on Sundays for many weeks via Nintendo Wi-Fi Connection.

With the discontinuation of the Nintendo Wi-Fi Connection services in May 20th, 2014 these bonus puzzles are no longer available for download. They were actually unlocked, rather than downloaded, meaning all the data is already present in the game.