* CrowningMomentOfFunny: An unintentional one. When the Thing goes to kill Doctor Doom, Doom asks "How did you get in here?" The artist and writer apparently weren't communicating properly, because ''we see the Thing coming through an open door''.
** Another one involving the Thing, this time in Issue One:
--->'''Thing''': Reed! Can you explain what the hell's going on in 25 words or less?
--->'''Mr. Fantastic''': I don't know!
--->'''Thing''': You did it in three! I didn't think you had it in you!
* CrowningMomentOfHeartwarming: Hawkeye, despite disliking Hank Pym, decides to help him find Wasp because he knows how it is to lose a family member. The moment is genuinely touching, [[spoiler:in contrast to its horrible conclusion.]]
* DarknessInducedAudienceApathy: The comic was so ridiculously dark that many readers either swore off the Ultimate continuity or were discouraged from getting into it.
* DorkAge: Almost universally agreed to be this for the Ultimate Universe, due to taking DarkerAndEdgier UpToEleven and killing off pretty much 75% of the cast.
* IdiotPlot: It actually takes 4 issues for the heroes to actually start acting like heroes. [[spoiler: Not to mention the idea that the heroes ''literally'' stood back and did nothing while they watched Magneto rip Wolverine to shreds, killing him.]]
* {{Narm}}: A lot. Probably the crowner is the above-mentioned moment where Doctor Doom demands to know how the Thing managed to ''enter through an open door''.
* NeverLiveItDown: No matter how many good things he writes, Jeph Loeb will likely never escape the reputation gained from this comic.
* NightmareFuel: [[spoiler:Blob eating the Wasp's corpse]]. Unlike usual examples, however, this isn't considered a good thing in any way, even for fans who like being creeped out; as a matter of fact, most of them were just disgusted by it and thought even more this comic was going to suck.
** Most of the deaths in this series count, but the one above is the most hideous example.