Apollo Justice: Ace Attorney[a] is a visual novel adventure video game developed and published by Capcom. It is the fourth title in the Ace Attorney series, and was released for the Nintendo DS handheld game console in Japan in 2007 and in the West in 2008, for iOS and Android in 2016, and for the Nintendo 3DS in 2017. It was also released for Nintendo Switch, PlayStation 4, Windows and Xbox One in 2024, as part of the Apollo Justice: Ace Attorney Trilogy compilation. The game takes place seven years after the previous game, Phoenix Wright: Ace Attorney – Trials and Tribulations. Phoenix Wright, the main character of previous titles in the series, has been stripped of his attorney's badge, and Apollo Justice, an up-and-coming attorney, becomes his apprentice, working with Phoenix's adopted daughter Trucy on four cases. The player's goal is to get their clients declared not guilty; to do this, they investigate the cases and cross-examine witnesses. When finding inconsistencies in witness testimonies, the player is able to present pieces of evidence that contradict the witnesses' statements. They can also use the "perceive" system, in which they are able to see nervous motions or actions during witness testimonies, similar to a tell in poker. The game was developed by a team of 28 staff members, including producer Minae Matsukawa, director Mitsuru Endo, and character designer Kazuya Nuri. Series creator Shu Takumi, who wrote the game's scenario and took on a supervisory role for the production, had wanted the series to end with Trials and Tribulations, as he felt that Phoenix's character had been explored fully; when it was decided that the game would get made, he wanted it to have a new main character with a new story, and wanted Phoenix to not make an appearance. Despite this, it was decided that Phoenix would serve as a mentor to Apollo. Apollo Justice sold around 250,000 copies during the first retail week and 515,417 by the end of 2007, and has been mostly positively received by critics.