The first 3 games in this series were released on the GBA, only in Japan. When the first game was ported to the Nintendo DS, a new case was added. This case caused a continuity error in the second game, when the original last case of the first game was said to be Edgeworth's last case. This was corrected in Phoenix Wright: Ace Attorney Trilogy, which updated some of the lines of dialogue to fit the new case into the series timeline. Specifically:

• "(But after "that" case was over...)" became "(But a little after "that" case was over...)"
• "After that case, Edgeworth was in a peculiar state, and he got worse everyday." became "Edgeworth was never quite the same after that case, and then, with the case after that one..."
• "That was one year ago. It was right after you left to go back home." became "That was one year ago. It was a few months after you left to go back home."