* CompleteMonster: [[NamesToRunAwayFromReallyFast Killer The Butcher]] is TheDragon to BigBad [[AIIsACrapshoot Gaizock]]. During the series, this guy commits any sort of horrible action, the ''mildest'' of which is mass murder of innocent civilians with the excuse of [[HumansAreFlawed humans being worthless]]. One of the crueler of his deeds is implanting mini-bombs inside unknowing human prisoners, just to release them, let them go back to their families, and ''then'' blow them up. All the while, he admires his work, is proud of the bloodshed and jokes about the horrible deaths of his victims, treating his killing sprees as a funny game.
%%* HarsherInHindsight: Human bombs.
* FridgeHorror: The BigBad Gaizok states that [[spoiler: it is made by the Gaizok race and is numbered eighth and sent out to destroy creatures "with bad thoughts".]] Does this imply that [[spoiler: it is only ONE OF THE SEVERAL bio-computers manufactured, while the others are roaming the galaxies and trying carry out their designated massacre jobs?]]
* SugarWiki/HeartwarmingMoments: Kappei befriending Chieko in episode 13.
* SpiritualSuccessor: Tomino's ''Anime/MobileSuitGundam'' and ''Anime/SpaceRunawayIdeon''.
* WhatDoYouMeanItsForKids: It has dark themes and a BittersweetEnding, but was marketed to kids, nonetheless.
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