* FanonDiscontinuity: The original may not be anything special, but even its fans wish that the sequel never came to be.
* FridgeHorror: They need a nose cone for their spaceship for re-entry. [[spoiler:So they use the frozen, but still blinking, Zartog.]]
* FridgeLogic: The chimps speak their own language that the humans can't understand. The aliens also speak their own language, but they can understand the chimps just fine with no explanation or language barrier. So, ''somehow'', two completely different species on two completely different planets developed ''the exact same language''.
* HilariousInHindsight: Malgor is an alien world with technicolor flora and fauna, a MacGuffin material and predominantly blue aliens with flying mounts resembling stingrays at their disposal. [[{{Film/Avatar}} Yeah.]]
* OlderThanTheyThink: The Nineties cartoon ''WesternAnimation/CaptainSimianAndTheSpaceMonkeys'' was pretty much exactly the same thing.
* {{Sequelitis}}: The sequel pretty much cranked up the first film's faults while doing away with its redeeming points.
* SoOkayItsAverage: The first film is considered this by those who don't hate it; there are certainly worse films out there, but a lot of better movies were being released even at the time.
* SpecialEffectsFailure:
** The CGI in the first movie isn't honestly "bad" [[SoOkayItsAverage per se]], but there's a noticeably MinimalistCast when it comes to the humans and the design of Zartog's race is pretty bland. But to put things in perspective: the film came out in 2008, 1 month after audiences got to see ''WesternAnimation/WallE'', ''and just compare those two''.[[note]]It's also worth pointing out that ''WALL•E'' had a much higher budget than this film ($180,000,000 as opposed to $40,000,000)[[/note]]
** The second movie, given its [[DirectToVideo straight to DVD]] status, plays this a little more straight. It is also something of an OldShame to [[Creator/PranaStudios the animation company]] behind that film. Up to, and including, not mentioning it on their own website.
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