RyuuKoOh (Dragon Tiger Lord) and KoRyuuOh (Tiger Dragon Lord) are a changing mech used by Ghidorahnumber1.
RyuuKoOh and KoRyuuOh were built in ancient China as a defense against the invading Dante and his Warrior Beasts. Almost defeated, they released an unknown magical substance that trapped Dante and his beasts underground for 2,000 years.
RyuuKoOh is one of the forms of the mech. She is generally chaotic and radical, doing whatever she wants to accomplish something. She is half piloted by Kusuha, who shares her personality.
KoRyuuOh is the second form of the mech. He is generally peaceful, not wanting to harm humans. He protests battles in cities, an hates letting RyuuKoOh take control, because of the damage she causes. When no one else is in danger, though, he is a great fighter, an will fight until he wins or is extremely wounded. He is piloted by Bullet, who shares his non-harmful intentions.
Pilots of the mechs allow them to multitask and give power ups, such as the pilot can fly the mech while it flies.