Franchise: Ace Attorney

In the English dub of the Ace Attorney anime, the character Furio Tigre is voiced by Sam Riegel, the English voice of series protagonist Phoenix Wright starting with his appearance in Ultimate Marvel vs. Capcom 3 (with the exception of Professor Layton vs. Phoenix Wright: Ace Attorney, where Phoenix was instead voiced by Trevor White). Based on a tweet from Kyle Phillips, the voice director for the dub, this appears to be intentional, as the case Tigre was involved in, "Recipe for Turnabout", involved him Spoiler:posing as Phoenix in a plot to frame Maggey Byrde for murder.

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."

In the Japanese versions of each game, Maya Fey's favorite food is ramen. However, this was changed to burgers in the US releases.

Phoenix Wright's Japanese surname, "Naruhodou" is a reference toward the Japanese expression "naruhodo", which roughly means "I see", "I understand" or "indeed".

According to series localization director Janet Hsu, they do not have a set process for localizing the series' many puns, but instead it occurs to them naturally:

According to series creator Shu Takumi in a 2017 interview, Capcom executives issued two mandates affecting the writing of Apollo Justice: Ace Attorney. The first mandate was that the game had to include Phoenix Wright in the story, which went against his original idea for a soft reset of the series. The second mandate was to incorporate the Lay Judge system, a real-life judicial system, into the story, resulting in the creation of Spoiler:the MASON System game program and the trial run of a new Jurist System in the game's last case "Turnabout Succession". The motivation for the second mandate is believed to stem from real-life changes in the Japanese legal system happening at the time of the game's release. While Japan previously suspended an older jurist system in 1943, the National Diet gradually implemented a new lay judge system (裁判員, or "Saiban-in") from 2004 to 2009. This system, resembling more democratic systems in North American and European countries, calls upon six random common citizens to serve as inquisitorial judges alongside three professional judges. Together, they make up the judicial panel, who analyze and investigate evidence presented to them throughout the trial before ruling on guilt and sentencing. Reflecting this, Spoiler:the Jurist System seen at the end of Turnabout Succession is made up of six random jurors guided by Phoenix Wright, where the player from the sixth juror's perspective has to rule the defendant Guilty or Not Guilty.

Takumi revealed that as part of the game’s promotion, Capcom collaborated with the Japanese Ministry of Justice and gave a presentation about Apollo Justice: Ace Attorney at the ministry's head office, implying that the system's mandated inclusion in the game was political propaganda. Despite Capcom cooperating in the Japanese government's push for this new system and despite participation experiences being reported as positive and easy to understand, the reception to other aspects of the system were largely negative. Complaints included gradually more severe sentencing since its implementation, the risk of criminal penalties for lay judges publicly discussing confidential deliberation room details after trials come to an end, and most starkly, calling upon Japanese citizens to put aside time to participate in the system, who were more unwilling to do so. This decline in interest was attributed to the length of both lay judge trials and pre-trial proceedings increasing significantly over the next decade. Due to aging populations and people simply being unable to make these commitments, more citizens refused to serve or even show up to be vetted for serving, making it harder to fill out the jury. As a result of this reception, the Ace Attorney series has not used Spoiler:the MASON System and the Jurist System since, sticking with the series' traditional Initial Trial system in future games.

One line frequently misattributed to the Ace Attorney series is "You are not a clown. You are the entire circus." This line originates from a 2019 tweet which was then edited over a screenshot of Miles Edgeworth as he appears in Phoenix Wright: Ace Attorney Trilogy. Further contributing to the confusion is that there is indeed a clown and a circus featured in the "Turnabout Big Top" case in Phoenix Wright: Ace Attorney - Justice for All, although Miles Edgeworth is not present during this case. Coincidentally, a line similar to the misattributed quote was featured in the 2015 game The Great Ace Attorney: Adventures during the fourth chapter "The Adventure of the Clouded Kokoro", where Barok van Zieks at one point states: "...My learned Nipponese friend is obviously in training to be a clown, the way he regales us with such witticisms. To your future career in the circus."

When asked about the possibility of a crossover between the Danganronpa and Ace Attorney series, Danganronpa series creator Kazutaka Kodaka stated he would be willing to lend out series mascot Monokuma to Capcom, but if Spike Chunsoft were given use of Ace Attorney characters, "they'd end up murdering someone or something. If [I] had a chance to use those characters, [I'd] definitely want to kill 'em in Danganronpa, so ..."