* CompleteMonster: The original iteration of [[AristocratsAreEvil Baron Karza]] is the [[BigBad truly monstrous dictator]] who has terrorized the Microverse for 1,000 years, and is the ArchEnemy of the Micronauts. After a failed coup against the Homeworld royal family, Karza [[UngratefulBastard butchered the very monastery that saved him from his exile]], using their secrets to return to Homeworld and institute his own tyrannical rule. Karza's first act after massacring the royal family was to create the Body Banks, a pit of machine horrors that he uses to butcher innocents, harvest their organs and body parts, then use said harvested parts to make himself and his followers nigh immortal, using the downtrodden of Homeworld and prisoners of war as subjects for the horrifying Banks. Taking sick glee in mass murder and genocide, Karza [[EarthShatteringKaboom razes entire planets]], sacrifices millions of people at a time to his Body Banks, and [[CruelAndUnusualDeath boils an entire race of sea people alive]]. To keep his forces ever-growing, Karza locks hundreds of women in [[MedicalRapeAndImpregnate impregnation machines]], forcing them to give birth to thousands of babies Karza raises into his soldiers, the process [[DrivenToMadness driving the women insane]]. Though seemingly dying numerous times, often after trying to [[TakingYouWithMe take countless innocents down with him]], Karza always returns to continue his atrocities, and, in his final bout, Karza butchers the entire population of Homeworld, turning them into agony-stricken monstrosities solely to torment the Micronauts, and later attempts to doom the entire Microverse in one final attempt to save his own skin. Karza's crimes [[KickTheDog not limited to wide-scale]], he also notably ruins the life of a young prince by framing him for attempted murder of his love, then by tricking his best friend into sacrificing her own legs to save the prince's love, all for his own amusement. A [[CardCarryingVillain self-proclaimed "artist of atrocities"]] whose [[ForTheEvulz only desire in life]] is to be the most wicked being he can, Baron Karza was a shockingly vile villain for Marvel Comics in [[UsefulNotes/TheBronzeAgeOfComicBooks the era he originated from]].
* GrowingTheBeard: Arcturus Rann, literally, when he [[spoiler: sacrifices part of the his artificially-maintained youth to recreate Biotron.]]
* {{Homage}}: In the mythology of the Microverse, some of the prominent figures associated with Wayfinder were named after Hindu gods such as Kali, Agni, and Yama. Additionally, Wayfinder and his people also for a time settled on Earth, probably in what is now India before they were again displaced by whirldemons. The Microversian written language resembles Devanagari, as seen by stone tablets unearthed in India, and translated by Dr. Strange in issue #31. The idea of AncientAstronauts inspiring Hindu mythology is very similar to Roger Zelazny's ''LordOfLight.''
* TheyWastedAPerfectlyGoodCharacter: Huntarr wasn't under any licensing restrictions barring him from usage as he was created by Bill Mantlo for Marvel Comics. Given his extensive character development and excellent relationship with the other Micronauts, the fact that he didn't return with Rann, Mari and Bug is puzzling.
** The entire notion of the Microverse has been laying fallow for many years in Marvel: even if they have to write around trademarks, you'd think they'd take more advantage of this science-fiction setting existing literally just under the noses of their regular universe. Reed Richards is known to have the technology to shrink objects past the barrier: it's a surprise that he didn't employ it in ''Civil War'' as an alternative to the Negative Zone.
*** When [[ComicBook/CaptainMarVell Genis Vell]] and Rick Jones were sharing a body, they would swap places between Earth and the Microverse. Rick had had a similar arrangement with Mar Vell years earlier, except they swapped between Earth and the Negative Zone.
*** The Microverse was used to explain ComicBook/TheWasp's return from apparent death, recently. When she realized she was about to die, she reflexively shrank down further than she ever had before, popping out in the Microverse. It's a [[AuthorsSavingThrow better explanation]] than most [[ComicBookDeath comic book resurrections, honestly.]]