animated character, Nightmare Cupcake, Five Nights at Freddy's, sharp teeth, glowing eyes, menacing look, purple hue, metallic texture, cupcakes with teeth, horror theme, dark background, ambient occlusion, low-key lighting, close-up shot, detailed texture, 3D model, sinister atmosphere, steel and fabric materials, jump scare pose, exaggerated shadows, spotlight effect, eerie mood.