|Family and Relations||Unknown|
|First Appearance||Great Mazinger (TV): Ep 17|
Igaunas was a gigantic blue lizard, he had a red underbelly and six legs. He had frills under his chin and white horns down his tail, spin and neck. He had a smaller version on top with purle scales, green arms and block like fingers.
Powers and AbilitesEdit
Iguanas was capable of flight, the smaller version of himself could detach and reatach whenever. He could change colour like a chameleon and spit flames from his mouth, he had super amounts of strengh. He was invulnerable to several of Great's attacks.
When a large earthquake uncovered Iguanas, Borot and Venus were digging Iguanas out he started to attack, Boss and Jun were covering up for Tetsuya while he went to the Science Lab with Iguanas following, then Great Mazinger fought Iguanas until the small version showed up and attacked Great with fire and missiles until Great Mazinger used a sword to decapitate Iguanas and got destroyed by Breast Burn.