Persona 4 Arena was the first ever region locked PlayStation 3 game, 6 years after the inital release of the PlayStation 3.
Contributed by Mass Distraction
Fuuka Yamagishi's voice actress in Persona 3, Mela Lee, was replaced by Wendee Lee for this game.
Contributed by PowerGuy88
Arc System Works wanted Ryoyaro Dojima (Yu's uncle) as a playable character. Instead of a persona, he was supposed to summon his daughter Naniko to his side. This idea was rejected by Atlus.
Contributed by Outofmind23
The color palate switch was meant to make the playable charters look like past Persona characters, Guilty Gear characters or BlazBlue characters.
Contributed by Outofmind23
The Velvet Room appears as it did in both Persona 3 as the elevator for Aigis and as the back of a Limo for Yu in Persona 4.
Contributed by Outofmind23
All of the voice actors returned to reprise their roles except for Tracey Rooney and Dave Wittenberg (Chie and Teddie respectively). They were replaced with the "Persona 4: The Animation" actors, Erin Fitzgerald and Sam Riegel. The new actors returned for "Persona 4 Golden."
Contributed by gamemaster1991