Well, I just finished my first playthrough of Layton 2, and immediately realized something was wrong with the credits. The song is supposed to be Iris - Shiawase no Hako by Salyu, but instead an instrumental version is played for the (U) localization. This patch changes the Ending Theme from the instrumental to the voiced version of the song. Nothing else is changed. In my opinion, this is the way the game should have been released. PPF patch available here Apply using PPF-O-Matic. Instructions: For ISO File, click the disc image. Change 'Files of type:' to 'All Files (*.*)' and select your Professor Layton and the Diabolical Box (U) NDS file. For Patch, click the disc image and select the ppf. Click apply.