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* BigLippedAlligatorMoment: Two appearances of Captain Mexica (an Aztec version of Cap), that were [[WhatHappenedToTheMouse never mentioned again]].
* BrokenBase: Fans are divided as to the quality of this series. The first series is generally regarded as excellent.
* FridgeBrilliance: In the "Marvel Werewolves" reality that Ash gets sent to at the end of the ''Army of Darkness'' crossover, he's dropped into New York right as the werewolves are devouring Galactus. However, in this group, Iron Man has been quietly replaced by Black Widow, presumably because as a werewolf, he couldn't fit into his suit and thus had nothing special going for him.
* FridgeHorror: Zombie Morbius impersonates the real Morbius for about two weeks. His disguise? A latex mask and gum to keep it in place. Now, even in the comic, it was kinda obvious that there was a noticible difference between the real Morbius, who looks pretty ugly because he's a ButtMonkey, and zombie Morbius, who looks even worse because he's an zombie and a ButtMonkey. In that two week span, didn't anyone notice that Morbius looked a little different? Or maybe notice the smell a walking corpse must have made? Or that he looked uglier than usual? Or that his body temperature was a little colder than usual? The horror comes in when you realize that for no one to notice, Morbius, even "normal" Morbius, must be really, really ugly and smelly and cold for no one to notice that a freaking zombie replaced him!
** After over ''forty years'' of angsting over his fate every time he eats somebody, why did Spider-Man never kill himself? He knows that destroying the brain will work. It is possible that the Hunger Gospel simply won't ''let'' him.
* HilariousInHindsight: Marvel has always said that the Ultimate & mainstream universes won't CrossOver, as it would show that they had run out of ideas. The Marvel Zombies were introduced in the Ultimate universe, and then wound up crossing over with the mainstream universe during a ComicBook/FantasticFour arc (from when Storm and Black Panther were replacing Reed and Sue), and ''Marvel Zombies 3'' was about the Zombies trying to invade the mainstream universe.
* HolyShitQuotient: If overpowering and consuming the freaking '''Galactus''' like they did in the first series doesn't constitute as one, we don't know what does.
* MyRealDaddy: Fred Van Lente redeemed the series after the disappointing ''Marvel Zombies 2''.
* {{Squick}}: Wasp and Reynolds (not the Sentry, but one of the Acolytes) fall in love. Okay. They eventually share a kiss. Okay. But one little detail: ''she's a zombie''.
** In ''Marvel Zombies Return'' Spidey, due to some not better-specified "muscle memory", ends up using ''his veins and arteries as webbing''.
* TheWoobie: Spider-Man is tormented by his status as a zombie, [[spoiler:especially since the two people he ate first were Mary Jane and Aunt May, which overwhelms him with guilt]]. Although his torment annoys his companions, who view it as {{Wangst}}, unlike the others it's what makes him the only zombie to really retain at least some semblance of his former humanity besides Doctor Doom, [[spoiler:and aids his eventual HeelFaceTurn and redemption]].
** Though he doesn't seem to mind [[spoiler:devouring J. Jonah Jameson]]:
---> I'm going to '''''enjoy''''' this!
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