Constanze

Constanze was a Megadeus built by the scientist Amadeus, armed with powerful sound-based weapons. It was designed to be piloted by Amadeus' android "son," R. Instro, although it didn't appear that Amadeus actually intended that to be his destiny. After Amadeus died, Instro's new guardian, Gieseng, eventually convinced him to pilot Constanze; however, while the Megadeus gave Big O quite the battle, Instro was distracted from his goal by R. Dorothy Wainwright. Big O was then able to destroy Constanze's arms, ending the fight immediately.