Tentacruel is a large, primarily blue jellyfish-like Pokémon. It has two large, red crystal spheres encrusted in its upper body that can refract sunlight and store energy. The round lower body, from which Tentacruel’s eyes are visible, appears black. It can extend up to 80 tentacles out of its body. Most of these tentacles are hidden, leaving up to 14 exposed. It has two blue beak-like appendages.