The Project X Zone blog shared concept art from the Nintendo 3DS game. Originally, Dante and Yuri were 3D character models and the team took care in translating them into SD style pixel art.
Notable special attacks had to be changed to fit 2D space and stay close to the source material. The artwork on the right shows Project X Zone’s original heroes Mii Kouryuji and Kogoro Tenzai.
One month after all of the character designs were completed artist Kazue Saito went back to Mii’s design and changed her hairstyle. After that was completed she declared the character designs were complete.