Hekatonkheires

Magical Beast transformation: Hekatonkheires, also known by its nickname Koro, was a biological Teigu formerly owned by Seryu. It has been destroyed since.

Abilities
Hekatonkheires, named as Koro for short by its last owner, is a biological Teigu resembling a small white dog that stands on its back legs. When ordered, it has the ability to grow to a much larger size, increasing its strength and durability. It usually attacks enemies by devouring them. Koro can also grow large muscular arms and unleash a fury of punches with it.

Like other biological Teigu, it will regenerate if damaged until its core is destroyed. The aforementioned core seems to be an orb in its body. It has a secret skill called Berserker Mode which evolves the Teigu into a more bestial form enhancing its physical abilities beyond imagination. Its roar is powerful enough to stun opponents alone. According to its owner, after using Berserker, Koro will overheat and be unusable for a few days. That statement was proven to be an exaggeration, since Seryu was capable of using it again directly after using Berserker.

Later on, with the help of Dr. Stylish's Perfector, both Seryu and Koro's bodies are modified to use a group of highly advanced weapons branded the Judgement of the Ten Heavenly Kings. These weapons are stored within Hekatonkheires' body.

Weapons Stored

 * Number 1: Shinkou's Ball of Justice - A large flail that can take down a large number of opponents.
 * Number 2: Four missile turrets that can be used to send out a volley of missiles.
 * Number 3: A large sword with a giant blade. It can execute enemies.
 * Number 5: Enma's Spear of Justice - A large drill that is capable of mowing down a large number of opponents. It can be launched to be used as a long-range attack. The drill can also explode if necessary.
 * Number 6: A giant armor reinforced missile that explodes.
 * Number 7: Taizan's Cannon of Justice - A long ranged anti-tank rifle with high destructive power.
 * Number 8: An arm with an unknown ability. It was used during her justice volley fire.
 * Number 9: Justice city detector - An arm with a radar that detects living beings in a certain area.
 * Unnamed hookshot

Trivia

 * "Hekatonkheires" is Greek for "hundred-handed ones".
 * In Greek mythology, the Hekatonkheires were 3 giants.
 * Hekatonkheires apparently consumes a large quantity of food regularly. Its food can be anything provided that it is meat, as it devours the bodies of both Sheele and Chelsea as well as some death row prisoners.