Gyakuten Saiban is a visual novel adventure game developed by Capcom Production Studio 4 and published by Capcom. It was released in 2001 for the Game Boy Advance.

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 four cases.