One of the nine character designs pitched for Call in Mighty No. 9, pitched by Keiji Inafune. She is depicted wearing a red dress with dark purple arm joins and dark yellow shoulder joints, with a striped violet and purple skirt, red ankle boots, and fuchsia/black gloves. She also has blue eyeslongpurple hair with blunt bangs, worn in twin tails that resembles Dr. Wily's iconic hairstyle.
Although this design did not make it as the final design for Call, as the Call F design by Yuuji Natsume won the majority of votes from the online poll for Call's character design, Call D did however became the design used for Trinity restored after Beck cured her corrupt programming that caused her mutation and go berserk that started the viral outbreak in America.
