* CompleteMonster (anime):
** [[TheEmperor Emperor Helldragon]] is the [[BigBad supreme leader]] of the dreaded, extraterrestrial [[OurDragonsAreDifferent Helldragon tribe]]. A [[GalacticConqueror conqueror and destroyer]] who envies the fertile lands of Earth Tear over the small planet he reigns over, the Emperor leads assaults every thousand years to penetrate Earth Tear's defenses and launch an all-out invasion of Earth Tear, planning to annihilate what he doesn't dominate and put Earth Tear under his cruel claw. Promoting a [[TheSocialDarwinist survival-of-the-fittest]] philosophy among his own army and constantly purging weak soldiers from the Tribe, the Emperor's assaults lead to countless lives lost and entire cities destroyed. Once Earth Tear's shield is finally about to give way, the Emperor resolves to land his mothership down on the planet's surface in the midst of the final battle and [[ColonyDrop crush everyone underneath it]] to silence any opposition to his attack once and for all.
** The blood-hungry Helldragon [[AxCrazy Rimujin]] is the most enthusiastic about murdering innocent civilians on Earth Tear. In order to divert the heroes' attention from the Emperor's larger projects, Rimujin proposes massacring a human city or two, and as soon as he's given clearance Rimujin sets about slaughtering dozens of innocent people, cackling all the while. Rimujin intends to wipe out the nearest city to the last person purely out of spite, and even [[HeroKiller takes down one of the heroes]] before he's killed off for good.