History YMMV / PokemonLucarioAndTheMysteryOfMew

* SugarWiki/MostWonderfulSound: Out of universe, every time one of the Legendary Golems "speak."

* TheyWastedAPerfectlyGoodPlot: The fact that Ash possesses the same power as Aaron and Lucario is never really touched upon in this movie or the series. It would take them nearly ''12 years'' later to have that be a major plot point when Ash obtains a Riolu egg (that would only hatch after sensing Ash's Aura powers). While minor plotlines in Sinnoh did reference his connection to aura, they were never so pivotal.

** [[BlackComedy While rather dark]], it's actually pretty funny that Aaron sacrifices himself to end a war without bloodshed...only for ''VideoGame/PokemonConquest'', a game about ''winning'' them, to come out a few years later.

* TheUntwist: [[spoiler:After the entire movie is spent for people vouching for Sir Aaron's heroism one would believe it would lead to the revelation that Sir Aaron was a FakeUltimateHero and Lucario's grudge was justified, but nope, Aaron was a good guy and Lucario just misunderstood the situation.]]

* FanonDiscontinuity: A VocalMinority of fans dedicated to Creator/FourKidsEntertainment tend to view this movie as a FinaleMovie, or at least act like the franchise underwent NoDubForYou after this film, rather than acknowledge the switch to [=TAJ Productions=] and the mass actor switch that came with it.

* FanonDiscontinuity: A VocalMinority of die-hard fans of Creator/FourKidsEntertainment tend to view this movie as a FinaleMovie, or at least act like the franchise underwent NoDubForYou after this film, rather than acknowledge the switch to [=TAJ Productions=] and the mass actor switch that came with it.

* FanonDiscontinuity: A VocalMinority of die-hard fans of Creator/FourKidsEntertainment tend to view this movie as a FinaleMovie, or at least act like the franchise underwent NoDubForYou after this film , rather than acknowledge the switch to [=TAJ Productions=] and the mass actor switch that came with it.

* FanonDiscontinuity: A VocalMinority of die-hard Creator/FourKidsEntertainment tend to view this movie as a FinaleMovie, or at least act like the franchise underwent NoDubForYou after this film rather than acknowledge the switch to [=TAJ Productions=] and the mass actor switch that came with it.

* HeartwarmingInHindsight: Everything about Ash and Lucario's developing friendship bond, despite the hostilities Lucario has for humans after Sir Aaron's "betrayal", becomes even more sweet when Ash himself bonds with a Riolu that just hatched from an egg and later evolves into a Lucario, serving as Ash's secondary Ace Pokémon in ''Anime/PokemonJourneysTheSeries''. [[spoiler:One is left to wonder if Ash's Riolu is the reincarnation of Lucario himself after the latter gave up his life to save Mew.]]

** The city where Kidd's partner Banks is looks an awful lot like [[VideoGame/PokemonBlackandWhite Castelia City]] from above.

* {{Wangst}}: Lucario spends most of the movie being ''very'' bitter over Sir Aaron's apparent betrayal, which would have been an easier sell if the movie had put even a token attempt into suggesting there was merit to his concerns--instead the prologue immediately shows Aaron is really making a HeroicSacrifice, knowledge well-established in history by the time Lucario escapes his seal, all of which leaves the audience in a position of effectively waiting for Lucario to get over his bad attitude.

* HeartwarmingInHindsight: Everything about Ash and Lucario's developing friendship bond, despite the hostilities Lucario has for humans after Sir Aaron's "betrayal", becomes even more sweet when Ash himself bonds with a Riolu that just hatched from an egg and later evolves into a Lucario, serving as Ash's secondary Ace Pokémon in ''Anime/PokemonJourneysTheSeries''. [[spoiler:One is left to wonder if Ash's Riolu is the reincarnation of Lucario himself after the latter gave up its life to save Mew.]]

* SurprisinglyImprovedSequel: This, the [[Anime/PokemonTheFirstMovie Mewtwo movie]] (mostly [[WhatDoYouMeanItsForKids in Japanese]]), [[Anime/Pokemon2000 the Lugia movie]], [[Anime/Pokemon3 the Entei movie]], and the [[Anime/PokemonKyuremVsTheSwordOfJustice Kyurem movie]] are often considered the high points of the movie series.

* HoYay: Aaron and Lucario have astronomical amounts of this.

** Aaron's interaction with Mew in the Japanese version. Creator/KoichiYamadera voices Aaron, but he also voiced Mew in the first movie.

** Lucario is voiced by Creator/SeanSchemmel, best known as the English voice of [[Franchise/DragonBall Son Goku]]. Years earlier, [[Creator/MasakoNozawa Goku's Japanese VA]] voiced another starring [[{{Mons}} mon]] in [[Anime/DigimonTamers Pokémon's rival franchise]].

** The sounds the Regis make sounds a lot like dubstep.

* HarsherInHindsight: In Ash's DisneyDeath scene, where he hurriedly says goodbye to Pikachu and his Pokémon; this film ended up being the final entry in the ''Pokémon'' series where Creator/VeronicaTaylor voiced Ash, and so the scene can be seen as the goodbye to her iteration of him as well.

* SugarWiki/AwesomeMusic:
** [[https://www.youtube.com/watch?v=MtSA7Mxl7Kk The music that plays during the opening credits]].
** "[[https://www.youtube.com/watch?v=ukR58btmBr8 Aaron 1]]", the song that plays during the montage of the war in the film's prologue. It has since returned for intense action sequences in the series, such as the Nando VS. Zoey battle of the Sinnoh Grand Festival.
** [[https://www.youtube.com/watch?v=Ir4JZWdeip8 Unbeatable]]. "You may beat some but you can't beat me" indeed.

* TheyWastedAPerfectlyGoodCharacter: Kidd being an agent for a secret organization is never brought up again.