26 - Professor Layton and the Last Specter
The last game that was published in the Nintendo DS maintains the same scheme of the other games, although it’s the first one of a new trilogy, this time set some years before the original one.
I used to play the Professor Layton games with my wife (then girlfriend), and that’s probably one of the reasons why I have a fond memory of them. In this case, I think she played through most of the story parts and I focused on the puzzles, so I don’t remember very well the plot, except for the end that was highly emotive.