* BrokenBase: Fan reaction towards this series is mixed.
* DieForOurShip: Poor Sakuya.
** [[spoiler: AlasPoorScrappy]]: For some. Whether you liked her or not, it can't be disagreed that [[spoiler: having Yugi give her a BreakThemByTalking right before re-absorbing her by force (and when the poor kid is crying and begging Tenchi to help her!)]] was ''really'' cruel.
* EnsembleDarkhorse: Hotsuma
* GrowingTheBeard: The second half of the series, which actually features Tenchi growing a spine and telling the girls to leave him the hell alone.
* RecycledScript: The way the script ends, it could be called "An extended version of the Tsunami/Sasami" episode in the original series [[spoiler: With Yugi instead of Sasami one day becoming a romantic rival as well]]
* RelationshipSue: Subverted with Sakuya. [[spoiler:She's the shadow of the BigBad, and is just there to try to trap Tenchi. This means, she's a RelationshipSue and has to stay that way so the story works.]]
** [[spoiler: Sakuya's almost as vicious a [[DeconstructedTrope Deconstruction]] as [[KingdomHearts Xion]]. First, since every aspect of her personality tailor-made ''in-universe'' [[SatelliteCharacter to Tenchi's preferences]], she has some pretty glaring holes in her FakeMemories (and personal life, if her [[WhiteVoidRoom mostly-empty apartment]] is any indication). Second, despite being sentient, she ''doesn't exist'' and [[TomatoInTheMirror figures this out]] [[BreakTheCutie towards the end]], even becoming an UnPerson before [[KillTheCutie re-absorption]]. Her speech during her own heroic sacrifice can be summarized as "I enjoyed being your personal MarySue, but now [[DareToBeBadass you've got to leave me and save your other friends]] because they're real and I'm not."]]
*** For some, that [[spoiler:perfect and complete selfless attitude that seems to be bait to garner sympathy for the character]] makes her a [[PuritySue whole 'nother Sue]].
** QuirkyMinibossSquad member Hotsuma, who seduces Ryoko back to her life as a SpacePirate and away from her TrueCompanions, was frequently paired with her for "real" in {{fanfic}}.
* TheyWastedAPerfectlyGoodPlot: The series has elements of RomanticComedy and MonsterOfTheWeek, which led to a very forced-in plot, which would've been better either that the show tried to be more realistic and focus more on the relationships off Tenchi and his harem and have Sakuya being a normal girl [[spoiler: instead of the villain's conjured shadow made to keep Tenchi away from them]] and go into the depths of their feelings about the whole matter and led to a sound resolution; or focus on fighting spirits and limit the romantic themes significantly in order to present a very action packed story. Instead the story ends with [[RecycledScript another romantic rival for Tenchi with the very same reactions from the girls of Yugi growing up and becoming a threat to their confession of love]] and Tenchi returning to the chaos of the screwed up family in the Masaki shrine.
** Alternatively, it could've shown how Tenchi would been as a normal student instead of an insanely powerful hero.