* {{Anvilicious}}: Episode 28. Remember, kids, if you don't do your summer homework, you'll get turned into a Desertrian! Oh, and TheFourthWallWillNotProtectYou.
* AwardSnub: ''Heartcatch Precure! The Movie: Fashion Show in the City of Flowers?!'' was nominated for the Kidscreen Award along side ''Zhu Zhu Pets: Quest for Zhu'' and ''Wapos Bay: Long Goodbyes'', the latter of which won. (Want to watch the winning movie? [[KeepCirculatingTheTapes Well, good luck with that!]]) No word, though, if it did better against Zhu Zhu Pets.
* CrossesTheLineTwice: [[spoiler:Erika, Itsuki, Coffret, and Potpurri gutting the bodies of three Snackeys to wear their skins as disguises in Episode 47 already sounds super dark and disturbing even in context... but them being able to pull off their PaperThinDisguise and momentarily successfully tricking the real Snackeys (even with Coffret NotEvenBotheringWithTheAccent) brings it back to a lighter shade of BlackComedy]].
* DemographicallyInappropriateHumour: Episode 1 has a scene where Chypre & Coffret hides under Tsubomi's shirt to evade Sasorina's capture, with said villain revealing she suffers from ACupAngst. This is the first - and last - time the franchise has ever done a BoobBasedGag.
* EnsembleDarkhorse: The fandom seems to have quite a fixation on certain supporting characters, particularly Sayaka and Kenji. The latter gets quite a bit of fanart of his imagined alter-ego from episode 21, Cure Fire. There's also a lot of fanart of his mom.
* EvenBetterSequel: To ''Fresh''. While ''Pretty Cure'' fans enjoyed ''Fresh'' for reinventing the formula after ''[=GoGo=]!'' along with being the first series to have a villain redeem herself and become a Cure, ''[=HeartCatch=]'' is regarded as one of the best series due to its characters and dynamic fight scenes.
* FanFicMagnet: Tsubomi's little sister Futaba from the finale. Quite a handful of fanfic writers and fanartists have spent some time thinking of what she would be like as a Cure.
* FanNickname:
** "[[Manga/SayonaraZetsubouSensei Zetsubou Sensei]] Kamen" or [[Franchise/SailorMoon "Tuxedo]] [[StoicSpectacles Megane"]] for Tsubomi's MysteriousProtector before he was revealed to be [[spoiler: Tsubomi's grandpa and eventually Coupe]], due to his resemblance to a certain suicidal teacher and/or a certain other mysterious protector.
** There's also Cure [[Anime/SailorMoon Mercury]] and [[Franchise/LyricalNanoha Fate]] Hanasaki for Yuri and Tsubomi, due to their [[Creator/AyaHisakawa voice]] [[Creator/NanaMizuki actresses]].
* FoeYayShipping: Dark Precure has an unhealthy fixation with Cure Moonlight. [[spoiler: Justified, it's something akin to sibling rivalry. [[IncestSubtext Not that this will stop any shippers...]]]]
* FountainOfMemes: Erika with her ''many'' hilarious face reactions, probably the biggest example in the series.
* GermansLoveDavidHasselhoff:
** "Heartcatch Precure!: The Movie" was apparently popular enough in France that it was simply dubbed into French, and has a surprising number of fans in the West who consider it to be one of, if not ''the'' best Precure movie, which brings the question why no Movie Theater/TV Station wants to air that film.
** The show in general has quite a few Western fans for just being a great show.
* GrowingTheBeard: The series really began to take off after episode 8, which provided great character development.
* HilariousInHindsight:
** With his fluffy hair, Kenji Ban could be easily mistaken for a shounen anime character. Two years later, Yoshihiko Umakoshi, character designer for ''Heartcatch'', went on to work on [[Anime/SaintSeiyaOmega an actual shonen anime]].
** Speaking of Ban, there's an ImagineSpot in episode 20 of him as a [[Anime/HugttoPrettyCure male]] [[Anime/HirogaruSkyPrettyCure cure.]]
** Unintentionally speaking, Cure Blossom and Cure Marine, inclusing Coffret and Chypre respectively reminds some fans of Robotboy and Robotgirl from WesternAnimation/{{Robotboy}}.
** A Movie-exclusive precursor Precure here is called 'Cure Ange'. Creator/NanaMizuki AKA Cure Blossom would later on voice [[Anime/CrossAnge someone named Ange, in a darker setting.]]
** In episode 37-38, the girls have to fight [[spoiler:their shadows, who are a representation of their real thoughts and insecurities and in the end they accept them as part of themselves...]] Hold on, that sounds awfully [[VideoGame/Persona4 familiar]]...
** There is an infamous doujin based on this series [[http://i.imgur.com/biWARhI.jpg out there]] that has the characters modeled after ''Manga/FistOfTheNorthStar''. Come ''Anime/DokiDokiPrecure'', the title of Episode 23 has the words '''[[AnimeThemeSong Ai Wo Torimodose]]''' in it.
** In the finale, [[spoiler: the heroes defeat the BigBad by fusing into a super-powerful being that delivers a CurbStompBattle in order to save the Earth. Years later, Yoshihiko Umakoshi would work on [[Anime/DragonBallSuperBroly another anime]] that ends with the heroes fusing into a super-powerful being that delivers a CurbStompBattle against a rampaging villain in order to save the Earth.]]
** In 2015, [[Anime/GoPrincessPrettyCure Haruka]] joined Erika in being a cure with a sister named Momoka.
** Tsubomi's deceased grandfather was named Sora, a named that later was given to [[Anime/HirogaruSkyPrettyCure Cure Sky]].
* InferredHolocaust: No one really stops to talk about or mourn for the many people who would have likely died from [[spoiler:Dune pummeling the earth during their final confrontation.]] And even if [[spoiler:all the people we see survived the world being turned into a desert long enough for it to get restored to normal, what would happen to all the marine life that can't survive that long in those conditions?]]
* IronWoobie: Yuri, also a StoicWoobie. The poor girl has her fairy '''die''', but she still keeps going in battle.
* LauncherOfAThousandShips:
** There is fanwork pairing up Tsubomi with every other Cure in the series, a number of supporting characters and a couple of villains. A few fans even joked that the series was actually all about her building a harem.
** Itsuki, arguably, given how [[EvenTheGirlsWantHer popular]] she is with the ladies.
* LesYay: [[HoYay/PrettyCure Ho Yay, Les Yay, it's all here. Just make sure you have a pail at the ready if you're not okay.]]
%% Should Magnum Opus be here? (It's on the main page.)
* MemeticMutation: [[Memes/PrettyCure See this page for the memes in this season.]]
* MoralEventHorizon: Dune crosses this when he [[spoiler: kills the Heart Tree, causing a worldwide near-apocalypse]].
* {{Narm}}: Dune's SuicidalCosmicTemperTantrum in episode 49. "My hatred will never disappear!"
* NightmareFuel:
** The Desert Devils.
** Try watching episode 41 when you are in the supposed target age range. [[spoiler: Because you are mean in class, your kindergarten teacher turns into a huge dinosaur with mean claws.]]
** Chair. Chair!! CHAIR!!!
* OneSceneWonder: Keiko Ban, who so far only appeared in a single scene from episode 18 but has an oddly disproportional quantity of fanart.
** Semi-averted. Keiko made a return cameo in episode 36.
* {{Squick}}: The Heart Seeds needed to save the Heart Tree -- the fairies poop them out. Um, ew. This leads to rather humorous OhCrap (no pun intended) moment in episode 28 when they realize what was about to happen after saving so many Heart Flowers at one time. Thankfully, after a while the Heart Seed sequence gets cleaned up just a little, though you still know they're pooping.
* TearJerker:
** [[spoiler: Professor Sabaaku/Tsukikage's HeroicSacrifice.]]
** Yuri's meeting up with [[spoiler: Cologne, her deceased fairy partner. Made sadder by the episode making it seem like he would be revived. Instead only his spirit appears before her.]]
** [[spoiler: As noted elsewhere, Dark Precure's death is also quite saddening. Many viewers are reported to have broken down in tears during this scene.]]
** The story of Kaoruko and Sora. They met while she was training for a martial arts tournament and eventually got married, with Sora promising to create a garden full of Kaoruko's favorite flower. But after they had Tsubomi's father, Sora suddenly passed away and Kaoruko spent years thinking that their plan was never going to be fulfilled. Cut to the end of episode 27, where it's revealed that Sora ''did'' accomplish his goal and planted a field of lavender in the mountains for her.
* ToughActToFollow: This season is so popular that the ones that followed have come across as inferior. It doesn't help that this series has some of the highest ratings in the franchise's history, right after (if not up there with) the [[Anime/FutariWaPrettyCure original series]].
* TrailerJokeDecay: Yuri's transformation sequence would have been much more badass and surprising if it wasn't ''the only damn thing'' shown in the next episode preview.
%%* UglyCute: Coupe
* ViewerGenderConfusion: It's not uncommon for people to mistake [[{{Bifauxnen}} Itsuki]] for a very cute boy upon first watching the series. If Tsubomi is any indication...
* WhatDoYouMeanItsForKids: Heartcatch is regarded as one of the most serious and dramatic ''Pretty Cure'' installations to date, as many of its character episodes bring up appropriately serious topics. [[spoiler: And that's not even getting into the whole predicament and suffering Yuri experienced throughout the series, as she has two people closest to her ''dying''. And no, they didn't come back to life after that.]]
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