Phoenix Wright: Ace Attorney is a visual novel adventure game developed by Capcom Production Studio 4 and published by Capcom.

The story follows Phoenix Wright, a rookie defense attorney who attempts to have his clients declared "not guilty". Among other characters are Phoenix's boss, Mia Fey; his assistant and Mia's sister, Maya; and prosecutor Miles Edgeworth. The player controls Phoenix through two sets of sections: investigations and courtroom trials. During investigations they gather information and evidence. During trials they cross-examine witnesses, and answer questions from the judge, the prosecutor, and the witnesses. The story is split into five cases. The fifth was introduced in the Nintendo DS version to take advantage of gameplay elements using the handheld's touchscreen not available in the original Game Boy Advance version.