Professor Layton and the Last Specter is an Adventure, Puzzle-based and Single-player video game published and developed by Level-5 for Nintendo DS. It is the 4th title in the series of Professor Layton game and serves as the prequel that is set 3-year before the event of the first trilogy, describing how the protagonist (Professor Layton) met his apprentice with the name Luke Triton and introducing the assistant named as Emmy Altava of Layton. The game comes with Role-playing elements, enabling the player interacts with Non-player characters from the series in the fictional town known as Little London. There are a variety of mini-games available, including Toy Train, Fish, Puppet Theatre, etc. that the player can enjoy while solving the mysteries. In the game, the player controls the actions of three protagonists (Professor Hershel Layton, Emmy Altava, and the Young bot) as they explore the village known as Misthallery. The game is split into multiple sections, and each offers a set of objectives that the player must complete at any cost to advance through the game.