Shell King

Shell King (甲殻王, Kōkaku-Ō) was a Demon-level Mysterious Being and the leader of the Shellfolk. It was killed by Blue.

Appearance
Shell King is a large monster with a humanoid lower body, crab-like upper body, and insectoid head. It has four eyes, antennae, and mandibles on its head, large claws instead of hands, pointed feet, and a hard spiked shell covering its whole body.

Neo Heroes Showcase Arc
Shell King is first seen engaging Blue in combat after taking out the rest of his Neo Heroes team. It resists Blue's initial barrage attack and grabs him with its claws, but Blue activates his Neo Heroes Battle Suit, cutting Shell King's claw off and obliterating its body with his special move Fist Cannon.

Abilities and Powers
As a demon-level mysterious being, Shell King was able to take out the rest of Blue's Neo Heroes team with the help of the Shellfolk, but it was not powerful enough to defeat Blue himself.

Physical Abilities
Enhanced Durability: Shell King was powerful enough to take a barrage of normal blows from Blue without any major damage, although it ultimately succumbed to Blue's Fist Cannon attack.