* AntiClimaxBoss: Nearly every enemy the protagonists face qualifies, but Lord Ryuma is by far the most egregious example. It's especially telling when Gyasa, a lesser {{Mook}}, was a lot harder to defeat.
* BrokenAesop: They're trying to say that racism and such is bad and forgiveness is good, yet Enterrans outside of the three heroes are at the best depicted as greedy, sneaky and deceiving, and with one mild exception all of the villains are pure, sadistic evil. If Yakumo forgives someone, they will endanger her life shortly after. The real message becomes: forgiveness is stupid and you can totally judge people on their appearance.
* CompleteMonster: [[BigBad Lanancuras]] was once a noble celestial god who guarded the Milky Way Galaxy, but eventually [[TheParagonAlwaysRebels became a downright Satanic figure]] due to his lust for power. When he began to subjugate and destroy all lower beings, the other celestials [[SealedEvilInACan imprisoned him inside a meteorite]] which later fell to Earth. From his prison, however, Lanancuras [[LeakingCanOfEvil continued to spread his reach]], brainwashing the King of the engineered Enterran race, Mushrambo, to annihilate every last human to prepare for his arrival. He selects Mushrambo to wipe out the last human city Shinzo and to kill the hibernating [[WouldHurtAChild six-year-old girl]] [[TheChosenOne Yakumo]], the latter of which backfires on him when Yakumo uses a portion of Lanancuras's own power to stop Mushrambo and splits the Enterran's soul in the process. When the timeline resets so that the war never happened, Lanancuras orders his Kadrian lieutenants to massacre humans and Enterrans alike for failing him. Even at his final defeat, he spitefully reveals that he had planned for this, as his demise as the cosmic embodiment of the Milky Way will mean the [[TakingYouWithMe end of all life on Earth]].
* EnsembleDarkHorse: In spite of being in only three episodes, Gyasa is by far the most memorable of the villains in series, being one of the few Enterran villains to put up a good fight till the end. He ''greatly'' overshadows his boss. It also helps that the dub theme song prominently features him.
* ItsShortSoItSucks: One of the main issues relating to why the series didn't live up to its full potential is because it had less episodes than other anime of its kind (The Manga was only two volumes long). As such, the plot is extremely rushed; there's not enough time devoted to many of the mini-arcs or to flesh out the villains, as most of them were taken down with little effort. There were even three members of the QuirkyMiniBossSquad that were teased as the next enemies to be fought... only for Rusephine to reveal that she carded them offscreen in the ''very next episode''.
* {{Narm}}: When becoming Mushrambo for the first time, Mushra absorbs his friends' cards... through his chest. It almost killed the SugarWiki/MomentOfAwesome.
* {{Squick}}: The Saban dub, particularly towards the end, likes to imply that Yakumo and Mushrambo are destined lovers. Mushrambo is [[spoiler:either three people at once: a kid, a teen and a fat anthropomorphic cat merged together, or the guy who wiped out the human race and tried to kill her. She also has the sexual and romantic experience of a six-year-old.]]
* TheyWastedAPerfectlyGoodCharacter: Of the Seven Enterran Generals, only four were ever shown in major details in the series, while the other three [[TheUnfought were already cards from the start]][[note]]What makes it worse is that emphasis had been put on having to fight them in a previous episode[[/note]]. The Enterrans in general count as several of the different mini arcs were very rushed, making the possibilities of animal Enterrans very limited.
* WhatDoYouMeanItsForKids: The series is a Shonen, was broadcasted in Creator/FoxKids and marketed to children, but we are talking about an anime which shows nightmarish creatures and monsters, incredibly evil characters, deaths on screen including [[spoiler: our main heroine, ''for reals and permanently'' at the end of the series]], and some quite cynical moral aesops.
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