* HypeBacklash: The show received notoriety even before its TV debut, thanks to the heavy advertising campaign the TV station gave it. When it finally aired, it quickly gained a bad reputation due to the several serious problems that plagued it.
* {{Narm}}: While ''Last Day of the Dinosaurs'' is heartbreaking, the tsunami scene falls a little flat; namely the death of the female ''Quetzalcoatlus'' (tries to fly away, only for the tsunami to engulf her with a comical "splat" sound effect) and the fact that the deaths of those three ''Triceratops'' comes off as a TooDumbToLive moment, especially since their fourth member stayed behind, despite being just as desperate for food as they were, and survived.
* NightmareFuel: What the meteor impact does to the unprotected dinosaurs. They catch fire, and [[{{Squick}} their skin peels off]]. Doubles as NauseaFuel.
** Also, some of the gory fight scenes. [[spoiler:Like the conclusion of the ''[[StockDinosaursTrueDinosaurs T. rex-Triceratops-Ankylosaurus]]'' clash]].
* {{Padding}}: See the entries for StockFootage and ViewersAreGoldfish. Without these, the programs could each have been just half an hour long, or even shorter.
* TearJerker: The Cretaceous extinction, and what happens to the surviving dinosaurs and pterosaurs.
** The survivors who end up as TheLastOfHisKind. A ''Charonosaurus'' leaving the safety of a cave to find that all of her herdmates are dead, the ''Saurornithoides'' who's left with no choice but to eat its fallen partner, the ''Quetzalcoatlus'' who lets out a mournful scream when she finds her mate dead, the ''Triceratops'' that had to watch as its herd is decimated by a tsunami...
* TheyJustDidntCare: The {{Narrator}} mispronounces ''[[StockDinosaursTrueDinosaurs Parasaurolophus]]'' (Parasauro'''phol'''us), they misspell ''[[UsefulNotes/PrehistoricLifeSauropods Sauroposeidon]]'' (Sauroposeid'''e'''n), and even the name of one paleontologist (the one who got quote-mined, even)!
* VisualEffectsOfAwesome: Even if you hate the clips for repeating so much, you have to admit: the effects are damn spectacular.
* WoobieSpecies: The dinosaurs (and ''Quetzalcoatlus''), after the meteorite impact. ''Last Day of the Dinosaurs'' pulls no punches as it shows off just how devastating it was and how much pain and agony these animals suffered in their final moments because of it.