Subst Worm (サブストワーム Sabusuto Wāmu, 39 & 40): A former servant of Uca Worm who turned on her mistress for "betraying herself and the Worms." He can swim, has a thick shell that allows him to dive up to 6 kilometers underwater, and can fire energy arrows from his right arm. Destroyed by Hyper Kabuto's Hyper Slash.