"It's not that we don't like other hardware and that we don't want to do it," Eshiro said. "It's just it was original made for handhelds, it was made to be played on the go, and also the interface we created the game, especially for Ace Attorney Investigations, uses the touch screen and we want people to interact with that. You can't replicate that on Xbox Live. For us, the DS seems like the most natural fit."
What has changed was the original plan for Investigations' protagonist. Eshiro revealed that "scientific investigator" and Apollo Justice detective Ema Skye was intended for the role. "The director originally proposed to use Ema as the main character," he said, "but according to the feedback we got from our fans it seems Edgeworth was the more popular character." And thus we have a game with a "Logic System" instead of a "Snackoo-Eating System."