* AccidentalInnuendo: So, in ''Platinum'', you get a villa. You can buy furniture for it. When you mix records, sometimes your friends will find a TV program that is examining furniture you have. Sometimes they say that you have a "nice rack".
** REGIGIGAS can't get it going because of its Slow Start!
* AlternativeCharacterInterpretation: Is [[BigBad Cyrus]] evil and twisted beyond redemption or is he [[WoobieDestroyerOfWorlds a tortured soul who just needs serious therapy]]?
* AmbiguouslyGay: Lucian. Look at the way he dresses.
* BaseBreaker:
** Barry is either {{Adorkable}} and a worthy rival or incredibly annoying and not nearly as {{Badass}} as [[VideoGame/PokemonRedAndBlue Blue]] and [[VideoGame/PokemonGoldAndSilver Silver]].
** Cyrus is either a WoobieDestroyerOfWorlds, an irredeemable monster, or perhaps even both.
** Garchomp. You either love it for being an Uber {{Badass}} dragon, or hate it for being one of the biggest [[GameBreaker Game Breakers]] in the franchise (at least until Gen VI came around).
** Lucario is either [[CreatorsPet given too much attention]] or just out and out awesome. Or both.
** Arceus. Many don't take too kindly to the notion that it's supposed to be {{God}}, as it makes other deified legendaries look obsolete. Its stats, ability and move pool are certainly worthy of praise as god-like, though.
*** For that matter, the number of legendaries in Gen IV garners enthusiasm from half the fan base for a slew of such powerful Pokemon and criticism from the other half for making the legendary status seem less special.
** The evolutions of previous Gen Pokémon (especially [[NostalgiaFilter Gen 1 Pokémon]] like Rhydon) got heavy flak when first introduced, often called unnecessary and abominations of the older Mons. Over time, more people joined the side that recognized them as redemptions to Mons considered mediocre to forgettable beforehand.
** Stealth Rock. Competitive players love it for keeping borderline {{Game Breaker}}s in check and having universal application, while casuals hate it because [[ComplacentGamingSyndrome it's freaking everywhere]] and makes Mons like [[BreakoutCharacter Charizard]] bad (or worse than they already were in [[TierInducedScrappy Charizard's]] case).
** The Distortion World. A CreepyAwesome trek through a physics-defying dimension, or an unnecessary attempt to show that Gen IV was actually running the 3D engine?
** The soundtrack. The general opinion, even from some critics, seems to be that it's good and refreshing after the overuse of trumpets in Gen III, but didn't use the DS sound capabilities to its full extent.
** Cynthia is either a {{Badass}} Champion with a near perfect-team who also has an endearing personality or given [[CreatorsPet too much spotlight]] considering her constant appearances in ''Heart Gold[=/=]Soul Silver'' and Gen V games. Most fans prefer [[VideoGame/PokemonRubyAndSapphire Steven]] more, even before the Hoenn remakes are announced.
* BreatherBoss: Though how easy they are varies slightly depending on which version you're playing, due to the drastically different teams of some Gym Leaders.
** Byron. Pretty much all of the starters have an easy time against him, considering how they're very likely to be in fully evolved by then. Torterra gets Earthquake upon evolving, Infernape just spams Close Combat and/or Flamethrower, and while Empoleon may have a hard time with the Magneton that he's packing in Platinum, Surf (which you need to get to Canalave in the first place) can still KO his other Pokémon easily.
** Candice, due to being the [[KryptoniteIsEverywhere Ice-type Gym Leader]]. She's slightly harder in ''Diamond and Pearl'' where she has a [[BareFistedMonk Medicham]] for some reason, but it's extremely frail so it'll only be a problem if whatever you're trying to beat her with is weak to Fighting attacks.
** Nothing on Volkner's team is really threatening in any of the games, though he's slightly harder in ''Diamond and Pearl'' by virtue of having 2 Pokemon that ''aren't'' Electric-types.
** Elite Four Memeber Aaron has 2 {{Crutch Character}}s on his team and is pretty much an auto-win for the player. He's slightly less so in Platinum since they've been replaced with 2 legitimately threatening Mons that can also take a hit, though he's definitely still the easiest Elite 4 member since Bug has so many common weaknesses.
* BrokenBase: Gen IV is probably where [[CasualCompetitiveConflict competitive gaming]] really started to hit its stride, with the massive number of [=TMs=] and tutor moves, several items that would be impractical in casual play (ex. Choice Specs and Scarf, EV-gain enhancing Power items), the Physical/Special split, and evolutions for many neglected Pokémon. The more casual players, however, weren't so pleased with the lack of innovation to regular gameplay, [[NostalgiaFilter the aforementioned evolutions to old Pokémon]] [[VindicatedByHistory (though they've been received much more positively as time passed)]], the large number of legendaries viewed as dulling the concept (though Sinnoh's theme was mythology), and (in ''Diamond and Pearl'' but not ''Platinum'') the poor frame rate slowing down the adventure.
* CasualCompetitiveConflict: See BrokenBase above.
* ComplacentGamingSyndrome: The move Stealth Rock in the MetaGame. In competitive battling, it's almost required that you have both a Pokémon who can set up Stealth Rock and [[strike:a Pokémon who can counter it when your opponent inevitably does]] a team whose typing takes minimal damage from it, as it is far easier to get up and keep up than to remove.
* CriticalDissonance: Similar to Gen III, the games have all gotten glowing reviews, but you wouldn't be able to tell that from the fan base.
* CrossesTheLineTwice: A variation from the fandom regarding Drifblim, with HilariousInHindsight thrown into the mix. Nicknaming either it or its prevo "{{Hindenburg}}" (''and'' having either one of them with the Explosion attack) was already a pretty common joke, but then they got an exclusive Dream World Ability, Flare Boost, that increases their Special Attack while [[StandardStatusEffects Burned]] -- ''and'' right in step with the games that debut the series's equivalent of America, too. OhTheHumanity....
* DisappointingLastLevel: After the interesting battles with Team Galactic, Cyrus and the version legendary, you go back to the same old Pokemon ExcusePlot of collecting badges (Well, one badge) and fighting the Elite Four. Along with ForcedLevelGrinding, probably the [[ThatOneLevel worst Victory Road in the series]] and the hardest Champion battle.
* DracoInLeatherPants: Cyrus. The fangirls have latched onto him and won't let go, both in and out of game.
** Game Freak themselves seemed to want the players to feel sorry for him by adding his grandfather to Platinum and telling us about his sad, oppressive past. Of course, not too much, since we still want to beat him and put a stop to his plans...
* EnsembleDarkhorse: Lucario, thanks to its appearance in the eighth movie and (later) ''SuperSmashBros Brawl''. The fact that it performs quite well in competitive battling also helps.
** Riley counts because he's a [[{{Bishonen}} pretty boy]] with [[YouGottaHaveBlueHair blue hair]] and a [[BadassLongcoat trenchcoat.]] Just see how much fanart he gets compared to the other trainers you end up teaming up with.
** Cynthia is easily the most popular champion in the series.
** Looker of the International Police is well-liked. It helps that he bears some resemblance to Creator/DavidTennant of ''Series/DoctorWho'' fame.
** Staraptor, for having an awesome design, great stats, and being very easy to raise and use.
** Garchomp, as mentioned under BaseBreaker above, except now it was given a new secondary ability that makes it not so much of a GameBreaker.
** Electivire, despite its [[TierInducedScrappy questionable use in the metagame]], has proven quite popular compared to other [[BaseBreaker evolutions]]. Its design is quite appealing, and its move pool is still noticeably large compared to other [[PoorPredictableRock Electric-types]].
** Gallade, another evolutionary option for the popular Ralts family [[OvershadowedByAwesome It lost attention when Gardevoir received the Fairy-type and a Mega Evolution]], but receiving its own Mega Evolution later has helped.
* EvenBetterSequel: Despite a majority of the fanbase having mixed feelings in general towards these games, they're still an improvement over R/S/E. One of the reasons why is that you no longer have to catch Pokemon to complete the region's Pokedex; you just have to look for them.
** It also helps that it brought back elements that Gen 3 removed (ex. time more noticeable than simply through berry farming and Shoal Cave) and removed most of Gen 3's [[ScrappyMechanic Scrappy Mechanics]].
** Platinum is this to the original pair for fixing the frame rate, expanding the Regional Dex, and adding several features, like the Battleground to rematch Gym Leaders and a full-fledged Battle Frontier as opposed to just a Battle Tower.
* EvilIsCool: Cyrus may have been beyond redemption, but some find him to be badass.
* EvilIsSexy: Pretty much all the Team Galactic members (with the exception of Charon) are really hot. Cyrus is an unusual case because he isn't ''especially'' good-looking, yet he still manages to be very attractive in other ways.
* FanPreferredCouple: ''[[{{Lolicon}} Cyrus/Dawn]]'' is almost omnipresent in the fandom and has a surprisingly large following.
** [[HoYay Cynthia/Dawn]] is also very popular.
* FashionVictimVillain: Team Galactic has this weird AtomPunk theme with their costumes and hair that looks so out place because no one else in the game dresses like that. It's probably not the worst example of this to come out of ''Pokemon'', though.
* FreudWasRight: Palkia is often mocked for having a long, streamlined neck and head with perfectly round shoulders...
* FridgeBrilliance: Dawn and Lucas' Platinum art has them holding Repeat Balls, because they are repeating their adventure!
* GrowingTheBeard: This is the Generation that introduced the Physical/Special split, which is considered one of, if not the, most important additions in the franchise's history and allowed a ''ton'' of Pokémon to become more useful since they could use STAB attacks that worked off their better attacking stat. This is most notable for Dark-types since almost all of them were physical attackers but their STAB attacks were all special before the split, gimping their ability to deal with the Psychic-types they were meant to handle.
** In general, Gen IV is when the metagame began to present much more diverse strategies. The Physical/Special split gave many Pokemon more options to choose from, as Website/{{Smogon}}, during the previous three generations, would generally give most Pokemon one or two suggestions for a movepool, while most now have several. The selection of moves was greatly expanded because of the [=TM=] list increasing from 50 to 92 and the number of moves that a Move Tutor could teach was much higher than before (look at a Pokemon's moveset from Gens I-III, then compare it to the Gen IV moveset). Types noted for a lack of good moves received redemption during this generation, like Bullet Punch and Iron Head for Steel-types or X-Scissor and U-Turn for Bug-types. Lastly, there were more competitively viable hold items; the stall-oriented Gen II metagame only used Leftovers, and Gen III saw some use with the Choice Band and stat-increasing Berries consumed at low HP. Gen IV introduced the Choice Specs, Choice Scarf, Expert Belt, Focus Sash, Toxic/Flame Orb (to take advantage of Facade and abilities that activate from StandardStatusEffects) and Berries that weaken types (ex. Giving Garchomp a Yache Berry to weaken Ice-type attacks or Gyarados a Wacan Berry to weaken Electric-types attacks).
* GeniusBonus: Empoleon is the same height as Napoleon Bonaparte (Care to guess what Empoleon's name was based off of?).
** In Japan, Empoleon is known as "Emperte", so the theme is the same, except just using Bonaparte's ''last'' name instead.
* HilariousInHindsight: [[http://bulbapedia.bulbagarden.net/wiki/Sinnoh_myths#Sinnoh_Folk_Tales Sinnoh Folk Tale 2]] in Canalava Library was a MindScrew at the time of DP's initial release, but it makes a lot more sense now if you consider [[VideoGame/PokemonBlackAndWhite the Pokemon in question was probably a Zoroark.]]
** Gardenia has a known fear of Ghost-types, and at one point, even shows fear at the possibility of there ever being a Grass/Ghost type. [[VideoGame/PokemonXAndY Well, here's hoping she doesn't want to visit Kalos anytime soon.]]
* HoYay: Volkner/Flint and Lucas/Barry.
** A few female examples:
*** Candice and Maylene, especially in ''Platinum''.
*** According to some people, Dawn/Cynthia.
*** Mars/Jupiter has a hint of Hate Ship to it.
* HypeBacklash: Electivire, in the metagame. So much.
* InternetBackdraft:
** The subject of Stealth Rock seems to be getting a bit of this. It doesn't help now that it's really easy to get in [=HeartGold=] and [=SoulSilver=].
** If you like the Ponyta line, ''[[FandomBerserkButton never]]'' [[CharacterSelectForcing mention]] [[PoorPredictableRock them]] in any Sinnoh-related threads. It won't get pretty.
* [[JustHereForGodzilla Just Here for the Legendaries]]: The Legendaries of this generation, particularly the Dragon Trio and [[EvilIsCool Dark]][[DarkIsNotEvil rai]], are well-loved by the fanbase. However, most of the new non-Legendary Pokemon suffered from over-complicated designs and poor stats, except for a few such as Lucario, Garchomp and the previous-gen evolutions.
** BaseBreaker: Some fans prefer the designs from Generation IV onwards and/or think they are as complicated as the designs from previous and future generations.
* ItsTheSameNowItSucks:
** Fans are disappointed that the Sinnoh Victory Road is too similar to Hoenn's, from the layout down to the absurd number of HM requirement despite how far away the regions are from each other.[[labelnote:Explanation]]Hoenn is supposed to be more tropical (or at least temperate) while Sinnoh is a lot colder. Do note that Hoenn and Sinnoh are ''supposed'' to [[{{Foil}} contrast each other in many ways]][[/labelnote]] Doesn't help that the VS Seeker does not work in caves, so grinding levels are made more difficult due to the underleveled Pokemon and having to waste a slot in your team just to smash some rocks.
** Gen IV in general has gotten this reaction. While competitive battling greatly diversified (detailed above in GrowingTheBeard), regular gameplay isn't much different from before. One of the main reasons that future generations haven't been as polarizing is the amount of innovation.
* LauncherOfAThousandShips: Dawn. Some of the characters she's been paired with include [[DistaffCounterpart Lucas]], [[ChildhoodFriendRomance Barry]], [[HoYay Cynthia]], [[DatingCatwoman Cyrus]], [[{{Lolicon}} Riley]], and [[MrFanservice Volkner]]! And those are just some of the more common ones!
* LoveItOrHateIt: While Gen III was the most neglected generation [[VindicatedByHistory (and has become quite popular over time)]], Gen IV is probably the most controversial, for the reasons stated in the above BrokenBase entry. Gen IV still has many fans, but it has the most vocal Hatedom. While Gen V has the closest comparable number of haters (mostly for some unfavorable designs), it is simultaneously regarded as a contender for the series' MagnumOpus along with Gen II for its stronger plot and innovation.
* MagnificentBastard: Cyrus; he's a charismatic leader, a master of exploiting emotions, and always one step ahead of you.
** Moreso in ''Platinum'' than in ''Diamond'' or ''Pearl'', where he makes the ''incredibly '' '''stupid''' mistake of letting you free the Lake Trio, who then proceed to destroy his plans as a result. In ''Platinum'', he's [[CrazyPrepared prepared for this]], making ''two'' Red Chains instead of one so that he can bind both Dialga ''and'' Palkia, whose combined power blocks out the Lake Trio when they try to save the day.
* MemeticBadass: Pachirisu retroactively became this after the winner of the 2014 World Championships [[LethalJokeCharacter used one on his team.]]
* MemeticMutation: DEEDLE DEEDLE DEEDLE DEE! '''''WHOOOOOP''''' [[note]]Kricketune's call[[/note]]
** In some areas of the internet, especially in Japan, many people have joked about Flint resemblance to [[McDonalds Ronald McDonald]].
* MemeticSexGod: Cynthia. Also, surprisingly enough, Cyrus!
** Lopunny. its a Playboy Bunny made Pokemon!
* MoralEventHorizon: Cyrus' entire plan and the measures he takes to accomplish it, all JerkassWoobie traits aside. Charon's plan for Heatran probably would've also qualified had it actually gotten off the ground.
* SugarWiki/MostWonderfulSound
** [[http://www.youtube.com/watch?v=4dFn2r-iq_4 Kricketune's violin-esque cry.]]
** [[http://www.youtube.com/watch?v=FRHe5wqLMMI Staraptor's cry.]]
** [[http://www.youtube.com/watch?v=HoAKkImHxdE Bronzor's]] [[RuleOfThree cry.]]
* NeverLiveItDown: Despite Platinum fixing the frame rate, this generation is '''forever''' tainted by Diamond and Pearl being so slow.
** Gen IV also still gets flak for its small Regional Pokedex, most infamously [[CharacterSelectForcing forcing Rapidash on you for a Fire-type if you didn't pick Chimchar]].[[note]] Rapidash's movesets are too limited to be useful at that time, their species learns few powerful Fire-type moves at an appropriate level, Ponyta runs on MagikarpPower and can only be obtained in the latter half of ''Diamond'' and ''Pearl''.[[/note]] Platinum expanded the Regional Pokedex to correct this and placed Ponyta on a patch of grass north of Oreburgh City[[note]]though the vocal hatedom tend to remember the Diamond/Pearl ones[[/note]]. While the choice for Fire-types is still small there's at least enough for Flint to have a full team.
* {{Nightmare Fuel}}: In ''Platinum'' when Giratina screeches and launches itself at the screen. Especially scary if you read a lot of Pokemon creepypasta, in which loud screeches and the screen being covered in darkness is a common theme.
** [[HellIsThatNoise Giratina's cry]] in general is pretty creepy.
** Cyrus, particularly his scheme to annihilate reality and reshape it as he sees fit - "a world without spirit", as he himself puts it.
** The [[HauntedHouse Old Chateau]], to the point that the nearest Gym Leader refuses to set foot there.
** The laboratory in the Galactic Veilstone Building, with creepy music, vats with ambigious objects floating in them, and scientists who put the Lake Trio through such pain to create the Red Chain that [[EvenEvilHasStandards they feel sick and begin to question Cyrus's goals]].
* {{Padding}}: The initial pair (fixed in Platinum and HG/SS fixing it almost entirely) makes ''everything'' take forever to play out, even with animations turned off.
** This was likely because Game Freak had obviously had problems programming on the DS. For instance, the glitches in the 3D overworld and the drastically lower framerate despite being on ''far more powerful hardware'' than the previous titles!
* PlayerPunch: Idol Grace, one of the trainers who hangs out at the Pokemon centres, invites you to join her fan club if you win. Sounds innocuous enough, but after she is defeated, she laments that she is singing her heart out in Snowpoint City...to a crowd of none. This in a series where "I wanna be the very best Like no one ever was" is a de facto catchphrase.
* TheScrappy: Some fans just '''''hate''''' [[RealWomenDontWearDresses Dawn's]] [[AgeInappropriateDress design]].
** Some find [[ComMons Bidoof]] quite goofy and [[GoddamnedBats annoyingly numerous]].
*** RescuedFromTheScrappyHeap: [[BoringButPractical Its evolution Bibarel can learn all [=HMs=] except Fly. Makes him the best HM slave in the whole game and one of the best in the series due to its sheer abundance]] (In RSE, the best HM slave is commonly believed to be Tropius, who is very rare).
** Pachirisu is one early on, due to their unusually high defenses to go with their high speed. It doesn't help that it's a blatant Pikachu {{expy}}. One being successfully used in the 2014 World Championships might have gotten it RescuedFromTheScrappyHeap, though.
** Purugly, because of its [[{{Gonk}} design]] (''it even has UGLY in its name'') and being an [[TheComputerIsACheatingBastard underleveled]] ThatOneBoss at the Valley Windworks.
** In more or less the same vein, Skuntank as well, since it is an underleveled ThatOneBoss in Eterna City that can not only hit hard, but can poison your team or lower their accuracy.
** The Bronzor line. Their Steel/Psychic typing left it with only two weaknesses (until Gen VI's nerf to Steel-types): Fire and Ground. Their abilities can either weaken the former to neutral damage or NoSell the latter, which pretty much every NPC-owned Bronzor will use. This was worse in Diamond and Pearl because Pokemon capable of using Fire-type attacks were scarce in the Regional Dex (Platinum added more Fire-types and Fire Punch became available to more Pokemon through a move tutor). They love tossing around [[StandardStatusEffects Confuse Ray and Hypnosis]] to drag out the fight. And of course, AnimateInanimateObject designs generally get negative reception.
** Probopass, whose design is either hilarious or hideous depending on who you ask (not that Nosespass looked that good either). Its high defenses don't mean much when the Steel type slapped onto its Rock-type makes it quite susceptible to Ground and Fighting, the two most powerful offensive types in the game, so it's not even that good of a wall.
** Phione is not popular, due to being a weaker version of Manaphy with worse stats, a worse movepool, and the inability to evolve into Manaphy. Many consider it to be "useless", as it fulfills next to nothing, gameplay or story-wise.
** [[BossInMookClothing Ace Trainers]]. In these games, the National Dex requirements make their teams unpredictable without a guide since they will have powerful Pokémon in order to allow you to see every one in the Sinnoh Dex.
** If you are in the Master Rank of the Beauty Contest, and if a woman named Tanya and her Chimchar named Chimpy are in said Contest, it is very likely that she will win because Chimpy's Beauty is ridiculously high compared to your Pokémon, no matter how many Poffins you feed it.
** The Ponyta line for being the only non-Chimchar Fire-type Pokemon that is available in ''Diamond'' and ''Pearl''. While [[TookALevelInBadass they got better starting from this generation]], fans are [[FandomBerserkButton enraged]] that they're forced to use them. The fact that they never live down their PoorPredictableRock status in the past three generations makes matter worse.
* TierInducedScrappy
** Poor Luxray. It has a very popular design, but unfortunately, its Speed is too low, and there isn't much to work with in its movepool. That hasn't stopped it being used by quite a few players, though, since despite its flaws it is still a solid early-game electric type.
** Most of the brand new Pokemon in this generation had good movepools, but mediocre to bad stats, with exceptions like the starters, {{Ga|meBreaker}}rchomp, [[EnsembleDarkhorse Lucario]] and [[MagikarpPower Staraptor]] (among a few others) notwithstanding. It seems that [[VideoGame/PokemonGoldAndSilver even-numbered]] Generations of Pokemon tend to have Pokemon with this problem, while [[VideoGame/PokemonRedAndBlue odd]]-[[VideoGame/PokemonRubyAndSapphire numbered]] [[VideoGame/PokemonBlackAndWhite Generations]] have Pokemon with strong stats but shallow movepools.
** Electivire might be one of the biggest example of this and HypeBacklash. Good super effective coverage, and pretty decent stats combined with its decent synergy with Gyarados. Sadly, the fact that its starting speed are pretty low for a sweeper of its kind[[labelnote:Explanation]]To clarify, Electivire is not a Set-Up Sweeper. Set-Up Sweepers such as Gyarados and Lucario have a StatusBuff that gives them insane power and/or a way to bypass their low speed.[[/labelnote]], Motor Drive is dependent on your opponent to activate, and the fact that its movepool doesn't include a high powered STAB physical move means it wont do much damage without an insane amount of effort, luck, or your opponent being an idiot. Even today Electrivire is a commonly bashed Mon, especially on Website/{{Smogon}}.
* ScrappyMechanic
** The Pal Park limitation on migration - you can migrate only once per day. Of course, there are ways to effectively get around the limitation, but one should ask ''why'' they did implement that in first place. They learned from that mistake in [[VideoGame/PokemonGoldAndSilver HGSS]], though. Also, you must have the National Dex before you can start using it. While Gen III and future games simply require you to beat the Champion to get the National Dex, these games require you to have seen every Pokémon in the Regional Dex. Admittedly, it's not difficult if you haven't been avoiding trainers and constantly spraying Repels, but it still comes off as an unnecessary chore, especially considering that seeing Manaphy requires you to look in a book in the Pokémon Mansion that [[GuideDangIt the game doesn't tell you about]] and possibly having to use [[ScrappyMechanic a honey tree]] to see something you missed like a Combee. On the other hand, it did lead to a lot more trainer variety, especially with Cynthia having the most diverse team of any Champion in the series, so whether this subtle benefit offsets the potential tedium is debatable.
** Marsh and Snow tiles. Every step you take in the former traps you in a tile, forcing you to tap the Control Pad every which way to free yourself. Some have tall grass, so each of these movements can trigger a wild Pokemon battle. Platinum at least distinguishes the marsh tiles that are safe to walk through, and the deep tiles can be avoided. Snow, unfortunately, is a mandatory obstacle that sinks you in and out of a snail's pace at random intervals, making the trek to Snowpoint quite annoying (if the nonstop hail on Routes 216 and 217 wasn't enough for you).
** Honey Trees. You slather one with honey, wait six hours, and a wild Pokemon appears for you to catch. It's often a Wurmple, which you don't need Honey Trees to find, unlike ''every other Pokemon'' that can appear. If you're not satisfied with what you get, SaveScumming will only change the level, nature, gender and [=IVs=] (though this is helpful with Burmy and Combee, as the former evolves into different Pokemon depending on gender and the latter ''won't evolve at all'' unless it's the uncommon female). There's a 10% chance that nothing will appear. And good luck trying to get a Munchlax, which has a ''1%'' chance of appearing on ''4 of the 21 trees!''
** Defog is one of the franchise's most hated Hidden Machines. It's used to remove fog in the field, which lowers the accuracy of every move used in battle, in what was viewed as a totally unnecessary and frustrating weather effect designed to waste a valuable move space on your Flying-type [[ClosestThingWeGot or Pokémon with wing-like appendages]] for the sake of having an even number of [=HMs=]. It's not a move that most players would want on any of their Pokémon, whether they play competitively or otherwise. So you can choose to ignore Defog and grind your teeth out trying to get through the area with limited visibility and lowered accuracy, or you can waste a move slot on your flyer or a party slot on an HM slave.
*** RescuedFromTheScrappyHeap: Gen VI gave it much needed buff: it now removes all entry hazards (including the infamous [[ComplacentGamingSyndrome Stealth Rock]]).
*** [=HMs=] in general became most intolerable here. Despite common misconception, Gen IV did not ''add'' any more to the total of 8 established in Gen III; Flash (converted to a [=TM=] presumably because Game Freak realized that people don't ''need'' it to traverse dark caves, especially when the player is given a small patch of light starting from Gen III) and Dive (Sinnoh has ''much'' less water than Hoenn) were ''replaced'' with the aforementioned Defog and Rock Climb. However, you will find yourself using [=HMs=] more often than in any other Generation, especially in Mt. Coronet and Victory Road. This stands out further with future generations largely delegating [=HMs=] to optional for items and shortcuts.
* {{Squick}}: [[http://bulbapedia.bulbagarden.net/wiki/Sinnoh_myths The literal translation of Sinnoh Folk Story 3]] almost explicitly states that Pokémon and humans used to marry one another. Just think about that for a second.
* SidetrackedByTheGoldSaucer: As with every other pre-Gen V game in the series, there's a casino. And whenever that happens you end up spending hours on end trying to get the grand prize.
** The elusive Feebas, a major cause of people getting sidetracked, is in the basement of Mt. Coronet, which also happens to be where Cyrus plans to unleash Palkia and/or Dialga on Sinnoh. [[TakeYourTime Don't worry, Team Galactic will wait until after you're done hunting down a rare fish before they try to destroy the world]].
** The Underground is a minor version of this compared the casino. This place provides several useful items such as Evolutionary Stones, Fossils, the occasional Shard or Heart Scale, along with VendorTrash you can sell for easy money. You tend to forget you were supposed to be level grinding for the badges when you were having a lucky streak of harvesting the rarer items.
* SoOkayItsAverage: By contrast to the more polarizing Gen III and the more innovative (and acclaimed) Gen V and VI, the Sinnoh games are often seen as this. The original Diamond and Pearl, anyway; Platinum fixes many issues the first two games had, so it may still be seen as genuinely good, if quite dated.
* SurpriseDifficulty: Because the original Sinnoh dex, well... sucked (see CharacterSelectForcing), a lot of the gym leaders don't actually use their preferred type for the majority of their team, making them harder to sweep with a single Pokémon that knows a super effective move.
** The most notable examples are Volkner and Flint. For each one, half of the Pokémon on their teams don't follow their preferred typing. The electric trainer Volkner has an Octillery and an Ambipom, while Flint's got a Steelix, Drifblim, and Lopunny. Some of these Pokémon are put there to combat the common killers of their favorite types (Octillery beats Ground Pokémon and Steelix beats Rock Pokémon).
** Another grueling example is Candice, an Ice-type leader who has a Psychic/Fighting-type Medicham on her team, somehow making the cut by knowing Ice Punch. Fighting-type moves are super effective against all but one of Ice's common weaknesses (that being Fire), and can seriously trip up someone who thought that they'd sweep the Gym with a Fighting-, Steel-, or Rock-type.
*** At least you can find some FridgeBrilliance with that choice; her close friend, Maylene, is a Fighting-type gym leader, who has a Meditite in her gym battle and a Medicham in rematches. Volkner and Flint, on the other hand...?
** Note that once Platinum revised the Sinnoh Dex, Candice, Volkner, and Flint fall ''much'' less into this trope than they did in Diamond and Pearl.
* TastesLikeDiabetes: A few young child characters, such as the scientist's young daughter in Floaroma Town, the Pikachu-cosplaying girls or Tuber Chelsea on Route 213.
-->'''Scientist's daughter:''' ''(after you defeat Team Galactic at the Valley Windworks)'' Thank you, Trainer! You made those bad people go away! I think the balloon Pokemon [[note]]Drifloon[[/note]] will come visiting again!
* TearJerker:
** Barry's HeroicBSOD after failing to save Uxie from being kidnapped. "I have to get tougher. It's not just about being the strongest trainer anymore..."
** Hearing Cyrus' past from his grandfather in Platinum. Especially considering [[NietzscheWannabe what it's shaped him into]].
** [[HarsherInHindsight One in hindsight now.]] Remember Looker and his Croagunk? This game was both characters' debut. [[spoiler: For Croagunk, it will be his only appearance, as of VideoGame/PokemonXAndY, [[KilledOffForReal Croagunk was killed]] offscreen sometime between Generations 4 and 6.]] Even more so when you realize that [[spoiler: there's no mention of it in Black and White, so Croagunk probably died between Gens 4 and 5]].
** In the Lost Tower, you may encounter Roughneck Kirby. His only Pokemon is a Cleffa, a definite change from what Roughnecks are known to use (and an initial source of amusement). Then Kirby states before the battle that the rest of his Pokemon were killed by Team Galactic. That Cleffa he has? ''It's the only Pokemon he has left''.
* TheyChangedItNowItSucks: In the European Platinum versions, you can't play the slot machines in the game corner; instead you can gather some coins from them once a day. This also means the only way to get the Explosion TM without trading or cheating is to hope the attendant randomly decides to give you one.
** Unfortunately, they didn't learn, and in VideoGame/{{Pokemon Heartgold and Soulsilver}}, you have to play a flip card game which has too much {{Random Number God}} for people to actually get stuff quickly, and you can't just buy coins anymore. At least it's an actual game, right?
** [[MisBlamed And in their defense it wasn't even their fault.]] The European Union passed a law about minors and gambling that got it banned in video games. Ohio would do the same thing later that year. [[MoralGuardians The Game Corner pretty much was doomed the moment those laws passed.]]
* TheyJustDidntCare: Some of the contest types of moves introduced in this generation seem... odd choices, to say the least. Most glaring is Close Combat being classed as a Smart move, and Brave Bird being Cute. (Despite about 90% of Flying moves being Cool)
* UnfortunateCharacterDesign: Palkia, as mentioned under FreudWasRight above. Also Floatzel.
* ViewerGenderConfusion: Saturn, Lucian, and 1/2 of all Lopunny are male.
* VindicatedByHistory: Lucario was largely ignored after its generational debut and was believed to be outdated. The release of PokemonXandY saw a resurgence in popularity after getting a [[SuperMode Mega Evolution]][[labelnote:*]]Which is also considered a massive GameBreaker in Singles battles.[[/labelnote]] and being announced for the fourth ''VideoGame/SuperSmashBros'', defying many people's expectations. In a 2014 [[http://www.dorkly.com/toplist/56974/the-greatest-pokemon-of-all-time-vote-now Dorkly popularity poll]], Lucario got 12th place despite it not being 2008 anymore, and having ranked much lower on a similar 2011 IGN poll.
** The previous-gen evolutions have seen much more positive reception since the beginning of Gen IV.
* {{Wangst}}: Some of the things that Cyrus says can border on this.
* TheWoobie
** StoicWoobie: Cyrus.
** JerkassWoobie: Volkner, though he's not much of a jerk, just tired of battling trainers that barely stand a chance.
* {{Woolseyism}}: Looker is named Handsome in the Japanese release. Not only is it another way of saying handsome (i.e., one way to say someone is pretty is to say they're "quite a looker"), but it also ties in with his profession (he's a cop, as in, he looks for clues).