Heartwarming: Professor Layton And The Last Specter
A number of the character episodes, especially after the finale. Special mention goes to "Friends Forever," "The Family Ties," "Sorrow and Joy," and "Witch No More".
Arianna and Luke's first meeting as well as when they part ways.
The first time Misthallery fogs up, Layton, Emmy and Luke comment on it, with Luke suggesting that they hold hands so as not to get lost. This is heartwarming coming from poor little Luke, who up until meeting the Professor, had been so withdrawn and unhappy, as it shows him starting to open up and trust the Professor and Emmy.