The Scorching, Troublesome, Divine Flame 

Fusion-powered corpse-eating cyborg hell-raven monster girl that graduated from cannon fodder to a living star/nuclear bomb after eating a sun god. A Touhou character, and the final boss of Subterranean Animism.

Is the subject of countless Mega Man/Metroid/etc parodies due to the nuclear control rod on her arm doubling as an arm cannon.