Apollo Justice: Ace Attorney (逆転裁判 4, Gyakuten Saiban 4; lit. ”Turnabout Trial 4”) is the fourth game in the Ace Attorney series. It represents several firsts for the series, being the first to be released on the Nintendo DS other than the ports of the original Phoenix Wright: Ace Attorney Trilogy. It is also the first full Ace Attorney game for which Kazuya Nuri contributed original art assets, having previously done so for the bonus episode Rise from the Ashes of Phoenix Wright: Ace Attorney. Additionally, the game is a soft reboot for the series, featuring a new protagonist named Apollo Justice. Because later games in the main series reinstate Phoenix Wright as the main protagonist and reintroduce some of the characters from the original trilogy, this is the only game in the main series not to have Miles Edgeworth or anyone from the Fey clan mentioned by name, as well as the only game in the main series not to have ”Phoenix Wright” in the English title.
In December 2016, it was ported to iOS and Android smartphone platforms as Apollo Justice: Ace Attorney HD with updated character graphics in a similar manner to Phoenix Wright: Ace Attorney Trilogy HD.
The game was also released for Nintendo 3DS during November 2017, where it was exclusive to the Nintendo eShop outside of Japan. This version featured updated graphics (including stereoscopic 3D compatibility) and sound in a similar manner to Phoenix Wright: Ace Attorney Trilogy.
