When obtained from Gacha.
Devil Cookie sprite sheet.
Devil Cookie's sprite sheet as a Jelly Walker.
Cookie Wars Devil Cookie's Flying Skill
A promotional video for Devil Cookie in CookieWars.
Devil Cookie's description in the Cookie Run personality quiz.
Devil Cookie in "Come with me..." from
Photo Challenge. This shows that Angel and Devil Cookie are opposites.
Devil Cookie's beta design sheet.
Concept art showing Angel Cookie and Devil Cookie originally designed to be Pets. Retrieved from the official Devsisters account October 5th, 2020.
Unused Costume designs for Angel Cookie and Devil Cookie to dress as each other for Halloween. Retrieved from the official Devsisters account October 5th, 2020.