Professor Layton vs. Phoenix Wright: Ace Attorney

Professor Layton vs. Phoenix Wright: Ace Attorney (レイトン教授VS逆転裁判) is a crossover adventure puzzle game joint-developed by Level-5 and Capcom and published by Level-5 for the Nintendo 3DS. The game is a crossover between Level-5's Professor Layton puzzle series and Capcom's Ace Attorney adventure series, combining gameplay elements from both series. The game features scenario designs from Shu Takumi, the series director for the Ace Attorney series. The game was released in Japan on November 29, 2012, March 28, 2014 in Europe and March 29, 2014 in Australia. It will be released in North America in early 2014.

The game follows Professor Layton, Luke Triton, Phoenix Wright and Maya Fey as they attempt to solve the mystery of Labyrinthia. The game has two main styles of gameplay, Adventure and Witch Trial, which feature elements from the Professor Layton and Ace Attorney series respectively. The game features voice acting and animated cutscenes, a staple in the Professor Layton games but a first for the Ace Attorney series.

Story
In the city of London, a young girl named Espella Cantabella is chased after by a mysterious force and seeks the aid of the best brit in history, Professor Layton and his assistant, Luke Triton. When Espella is suddenly captured, Layton's investigation leads him to a strange book which transports him and Luke to a strange medieval city known as Labyrinthia. This town is allegedly home to witches who hides in the shadows, and is controlled by someone called the Story Teller, who allegedly has the power to turn anything he writes into reality. Meanwhile, Phoenix Wright and his assistant, Maya Fey, who have traveled to London on business, encounter the same book and are also transported to Labyrinthia City. There, they discover Espella has been accused of being a witch and is to be put on trial. As Phoenix decides to defend Espella, soon discovering that the laws of this world are far different from his own, Layton seeks to solve the mystery behind Labyrinthia, with the two not always seeing eye to eye