Hekatonkheires

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

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

Like other biological Teigu, it was able to regenerate if damaged until its core is destroyed. The aforementioned core seems to be an orb in its head. It had a secret skill called Berserker Mode which evolves the Teigu into a more bestial form enhancing its physical abilities. In this form, its roar was powerful enough to stun opponents alone. According to Seryu, after using Berserker, Koro would 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 were modified to use a group of highly advanced weapons branded "The Judgement of the Ten Heavenly Kings". These weapons were stored within Koro's 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.