Useful art therapy at Coloring-for-Kids.com: Hello Kitty Devil coloring page – black and white illustration with bright outlines for print and online games. Coloring trains perseverance, attention to small details, teaches you to bring the work you have started to the end. The young artist will definitely share with you the creative successes of the finished masterpiece! Creative Commons Attribution-NonCommercial 4.0 License. Author of the work: Persimmons Studio.