Giant monstrous centipede. Segmented armored body with glossy chitin. Sharp ridges along the back. Dozens of spiked clawed legs. Oversized mandibles with multiple eyes above. Long slimy tentacles emerging from mouth and thorax. Writhing motion, unnatural and alien. Dark brown and black exoskeleton with patches of green bioluminescence. Rough glossy texture, slimy details, dripping fluids. Horror mood, terrifying, monstrous, predatory. Realistic cinematic style, high detail creature design.