Flash Gordon (film)/WMG

Mongo became the world of The Big O
After Flash saved Mongo and Earth, the Mongans were ruled over by Prince Barrin peaceably. But Prince Barrin abandoned Mongo to become a certain secret agent. Then Mongo descended into chaos. The Mongans became darker and more mundane until their entire way of life became dreary. All that remained was the hope of a great hero to save them and Flash Gordon's theme music - which the theme music of The Big O sounds suspiciously like.