This heavily-armored armadillo-like creature has absorbed the Chozo artifact “Spring Ball†and taken on its powers. Arachnus has powerful forearms used for digging as well as attack. When threatened, Arachnus will roll into a ball, and his thick shell will protect him from both beam and missile attacks, but is susceptible to bomb explosives. The Spring Ball gives him the ability to jump while rolled up, allowing him to ram opponents. If the attacker persists, he will rise up counterattack with his claws and by spitting fireballs from his mouth.