Nyahtmare is an anthropomorphic demonic cat. They have black sclera with white glowing iris. They have eye marking in the form of a black slit vertical on their eyes. They have dark grey fur and a darker colored belly. Their ear insides are dark grey, however an unknown black substance covers the top and tips. They have perpetual darker grey blush. Their forearms to their hands are also covered in the same black substance, as well as their knees, feet, and lower tail. They are silly and mischief