レイトン教授vs逆転裁判 (Layton Kyouju vs Gyakuten Saiban) is a Nintendo 3DS game developed by Level 5 and Capcom. It is a crossover between the Professor Layton puzzle game series and the Ace Attorney adventure game series. The game features characters from both series, such as Professor Layton, Phoenix Wright, and Luke Triton. The game is a hybrid of the two series, combining puzzle-solving and courtroom drama. The player takes on the role of Professor Layton, who has been called to the court to assist Phoenix Wright in a trial. The player must use the Professor's puzzle-solving skills to uncover evidence, and then use the evidence in court to prove Phoenix Wright's case. The game also includes a variety of minigames, such as a poker-style card game and a rhythm-based game. Layton Kyouju vs Gyakuten Saiban is an engaging and unique experience that combines two beloved game series into one.