True pixel art sprite, authentic retro game aesthetic, very chunky large visible square pixels, crisp hard pixel edges, no smooth gradients — shading built entirely from dithering and flat color steps. A dark magical girl in a dramatic full-body pose, arms spread wide, shocked wide-eyed expression with open mouth. Long flowing dark-purple twintails made of chunky pixel strands, glossy black bodysuit with glowing indigo lightning accents drawn as pixel highlights. Behind her head a large black halo ring like a solar eclipse with pale glowing rim. Floating small pale skulls and wispy ghost flames as pixel sprites around her, glowing pixel magic circles at her feet. Strict limited palette: black, deep indigo, violet, lavender, pale white-violet. Dark cosmic background with pixel stars. 16-bit SNES era boss illustration style, low-resolution pixel grid clearly visible, portrait composition, dramatic backlight from the halo. Anime illustration, great quality, best quality.
