[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/Decade300_8487.jpg]]
[[caption-width-right:300:Destroy everything. Connect everything.]]

->''"Decade, the destroyer of worlds. What do you see as you travel through the many worlds?"''

The first 2009 series of ''Franchise/KamenRider'', created as part of the [[MilestoneCelebration ten-year anniversary]] for the Heisei Kamen Rider Era. The series is a CrisisCrossover featuring all nine preceding main Riders from the Heisei series.

The story is as follows: each ''Kamen Rider'' series thus far has existed in its own [[AlternateUniverse parallel world]]. Unfortunately, these ten worlds have begun to be forcefully merged into one, which will lead to [[SuicidalCosmicTemperTantrum their destruction]].

Tsukasa Kadoya is a (very bad) photographer by trade with IdentityAmnesia. When his world [[TheEndOfTheWorldAsWeKnowIt literally starts to fall apart around him]], he receives the power to become Kamen Rider Decade and is told that to stop the collapse of the TheMultiverse, he must travel to the other nine worlds and [[GottaKillThemAll destroy the Kamen Riders]] that live there, [[PowerCopying absorbing their powers as his own]].

Accompanying him on this journey is Natsumi Hikari, a girl whose family runs the photography studio that Tsukasa stays at, and who has been having [[DreamingOfThingsToCome a recurring nightmare]] where she witnesses the Rider War: a vast conflict that sees every Kamen Rider fall to Decade. There's also Yusuke Onodera, the AlternateUniverse Series/KamenRiderKuuga who befriends Tsukasa and decides to join him on his journey across the worlds.

As time goes by, it becomes evident that there are more than ten worlds caught up in the dimensional turmoil, and that a dark power lies at its root. Tsukasa also manages to attract some recurring antagonists: Daiki Kaito, an [[PhantomThief inter-dimensional thief]] who can transform into [[TheRival Kamen Rider Diend]] and [[SummonMagic summon past Kamen Riders]] to fight for him; and Narutaki, a mysterious man who believes that Decade is the source of {{The Multiverse}}'s destruction and will do anything it takes to stop him.

Rather than just a straight reuse of the suits, the series promised to use the "parallel universe" aspect of the story to introduce new features to the universes (and excuse [[SuspiciouslySimilarSubstitute the replacement characters]] brought about by alternate universes).

The character, [[TransformationTrinket Henshin Belt]] and storyline were clearly intended to also tie-in to the ''Kamen Rider Battle: Ganbaride'' game released in arcades across Japan. Not that we would ever think that this series is MerchandiseDriven.

For the ''Franchise/SuperSentai'' equivalent, see ''Series/KaizokuSentaiGokaiger''.
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!!This series contains examples of:

* AbsurdlyPowerfulStudentCouncil: The Lucky Clover Gang in Alternate Faiz's world. Being ''Orphenochs'' [[strike:kind of]] helps.
* AccidentalMisnaming: For some reason, Tsukasa keeps calling [[Series/KamenRiderDenO Kohana]] "[[Manga/{{ChibiMaruko-chan}} Maruko]]". In ''Onigashima Warship'', set after the Den-O arc, he calls her "Hanamaruko-chan". Most likely a ThrowItIn moment as Kohana's hairstyle resembled Manga/ChibiMarukoChan.
* TheAce: Tsukasa says he's good at everything. Subverted in his repeatedly poor photography, and a jolt to the neck (''Hikari-style Laughing Pressure Point!'') can result in uncontrollable, humiliating laughter.
** Which he even points out in the Faiz AR World: "I'm a master of everything...''except taking pictures''."
* ActingForTwo: What happens briefly when Diend whisks the ''Black'' incarnation of Kotaro to the world of Black RX, next to that world's Kotaro.
** Not to mention the brief period in Kabuto's world where Masahiro Inoue plays both Tsukasa and the Worm that's copied his form.
*** This was apparently supposed to happen again in the original draft for ''The Last Story'', which would have featured an EvilTwin of Tsukasa, but obviously it was removed in the rewrite.
* ActionGirl: Natsumi once she becomes Kamen Rider Kivara.
* ADayInTheLimelight: Yusuke in Agito World arc, making up for being DemotedToExtra. Also Diend, arguably, in Hibiki World arc; less arguably, in his own world, of course.
* AlternateUniverse: All the worlds visited by Decade to their original shows (except for the ''Shinkenger'' world, the original worlds, and probably Den-O) and within ''Decade'', Kuuga World to Agito World, and RX World to Black World. Agito World has Toko Yashiro, an alternate universe twin of Kuuga World's Ai Yashiro. Agito World also has the Grongi like Kuuga World, a MythologyGag to the original ''Agito'' and ''Kuuga'' being set in the same universe. RX World and Black World have their own, seperate incarnation of Kotaro Minami, both played by original actor Tetsuo Kurata.
** Den-O is pretty much identical and uses the same actors. The interior of the train is the same as the new interior from ''Final Countdown'' (where it is treated as new in-story), although the ''Final Countdown'' train is blue.
*** That's because it was the New [=DenLiner=], Kotaro's train; the ''Decade'' version has the old [=DenLiner=]'s exterior with the new one's interior.
** The world Daiki originates from is technically another alternate Blade World as well, it featuring the Kamen Rider Blade movie riders, but not the main ones.
* AmnesiacDissonance: {{Averted}} for [[spoiler:Tsukasa]] who takes it all in stride.
* AndThenJohnWasAZombie: In Hibiki's world, an Oni who loses sight of justice in favor of becoming stronger than his enemies for the sake of being stronger [[spoiler:turns into Gyuuki.]]
* AndTheAdventureContinues: [[spoiler:After all the shit they've been through, our heroes finally finished what their purpose is and head off to new worlds to continue Decade's story]].
* AnyoneCanDie: The Rider War World. Holy hell, the Rider War World. [[spoiler:Ixa, Leangle, Amaki, Todoroki, Blade, and Garren all get killed/removed from existence over the course of Episode 30. In 31, Yuusuke bites it against Super Apollo Geist (and is then brought BackFromTheDead in a BrainwashedAndCrazy state), and ''every single AU Rider except for Yuusuke'' is erased from reality. Even the main character bites it.]]
* AntiVillain: Implied to be this for Taurus Ballista in the Agito Arc. He says that the reason he's attacking the Riders is because he fears that [[HumansAreBastards humans could]] [[DrunkWithPower be consumed by their desire for power]] and that they should leave the Grongi fighting to the Lords.
* AscendedMeme: The "CHEESE!" gag in Blade's World is a nod to the "Ondoru-go" meme from Series/KamenRiderBlade.
* AsskickingPose: Made [[TVTropesWikiDrinkingGame egregious]] in the climax of ''All Riders'', wherein the Riders perform their poses during their battle with Shocker. Not before the battle nor after, but ''while fighting at the same time''.
* ATasteOfPower: Tsukasa gets a chance to use Kabuto's, Faiz's and Hibiki's powers in the first episode before they gray out, at which point he has to travel to their worlds to get them again.
* TheAtoner: Diend's got a lousy way of showing it, however.
* AttackOfThe50FootWhatever: Dream on, Momotaros. Played straight with [[spoiler:[[Series/KamenRiderX King Dark]] and [[Film/KamenRiderJ J]].]]
* AwesomeButImpractical: Activating Decade Complete form involves pressing ''all 10'' K-Touch buttons in the exact same order each time. In the heat of battle, even. It's like a gun lock with a 10-digit combination...
** Not to mention that actually using a function of the K-touch, even when Decade's already in Complete Form, requires Decade to take it off and press one of the desired buttons again ''every single time''...it's either that, or keeping the K-touch on the belt, and Decade has to press the buttons ''blind''.
* AWolfInSheepsClothing: In Faiz world, Yuri later brings up that she "never saw Takumi's real face", because [[spoiler:Takumi was secretly both Faiz and an Orphnoch. Crazily enough, this "wolf in sheep's clothing" is the [[VisualPun Wolf Orphnoch]].]]
* BadassBiker: Well, it is Kamen Rider, after all... except for Diend, who lacks a bike. The net-movies lampshade this by having the characters try and get a bike for Diend. [[spoiler:It turns out to be Tsukasa's Machine Decader, placed under lighting that only makes it ''look'' cyan. When Tsukasa complains, Kaitou breezily dismisses him and rides off with it.]]
** Even funnier, the "Machine Diender" actually shows up for real in the 40th anniversary movie ''Let's Go Kamen Rider'', allowing Kaitou to participate in the [[CombinationAttack All Rider Break]].
* BackFromTheDead: [[spoiler:Natsumi dies and then is resurrected minutes later at the end of Black RX's world. However, this comes at the price of some of Tsukasa's life force. We sort of see the toll he took during his battle in Amazon's World, though possibly it'll be taken off the end of his life.]]
** Additionally, [[spoiler: Yuusuke is killed in the last episode and revived by Kivara, making him BrainwashedAndCrazy. Tsukasa himself is killed in ''The Last Story'' but then revived by Natsumi, Yuusuke, Kaitou, and the AR Riders.]]
* BadassArmy: In 'All Riders vs. Dai-Shocker'', we get to see not just the Riders in the series, but every main Rider from the original to Decade teamed up, and its every bit as awesome as it sounds!
* [[BadassGrandpa Badass Grandma]]: We finally get to meet ''[[Series/KamenRiderKabuto Kabuto]]'''s mythical Grandma...and she's every bit as awesome as had been imagined.
* BadassNormal: Riderman, with Gackt specifically saying in interviews that he chose to play the character because, unlike other Riders who are superhuman, Joji is just an ordinary guy...with a SwissArmyWeapon ArmCannon, but still.
** He really gets to be the BadassNormal in the video for The Next Decade.
* BeatThemAtTheirOwnGame: Once Decade gets [[SuperMode Complete Form]], whenever he faces a Rider or monster from a certain world, his go-to tactic becomes summoning that world's rider in its own SuperMode. [[CurbStompBattle This goes as well for the other guy as you would expect.]]
* {{BFG}}: The Faiz Blaster. Also the Decade Bazooka from the Hyper Battle Video (which probably counts as a LethalJokeItem as well, considering [[RuleOfFunny it's made out of]] ''[[RuleOfFunny cardboard]]''.)
* {{BFS}}: The Blade Blade, which is [[strike:human]] building sized thanks to being made out of an actual Rider.
* BigBad: While this is played straight for nearly all the original villains Decade takes on, finding an actual big bad that lasts throughout the show is... [[ZigZaggingTrope weird]]. The ''true'' big bad is hard to decipher. [[spoiler: Is it [[LegionOfDoom Dai-Shocker?]] [[OneWingedAngel Apollo Geist?]] [[VillainProtagonist Tsukasa?]] [[{{Troll}} Narutaki?]] [[DiabolusExNihilo Doras?]]]]
** [[spoiler:Dai-Shocker]] is the BigBad, if you consider an organization itself to be a BigBad instead of a single person. [[spoiler:They are revealed as the instigators behind the fusing of the worlds, basically so they can TakeOverTheWorld. The narrative weakness here is that the mastermind of this plot (pre-IdentityAmnesia Tsukasa) is defeated/gives up this plan at the halfway point of the story. The rest of the series is spent fighting Dai-Shocker remnants who only had the loosest connection to the "world fusing" plan, which was ''the central focus of Decade'']].
** [[spoiler: Where ''All Riders'' takes place is hotly debated, likely with no good answer possible. The world fusing plot is solved in Movie Wars 2010.]]
* BigDamnHeroes
** All Riders in ''All Riders vs. Dai-Shocker''.
** The AR Riders in the ''The Last Story'' movie...twice.
* BittersweetEnding: All of the worlds end like this, usually of the "So and So is defeated, but so and so dies!" variety, while others rely on InferredHolocaust.
** Kuuga's World: N-Gamio-Zeda and the Grongi are defeated, [[spoiler: but Yashiro dies]].
** Kiva's World: The Beetle Fangire is defeated, [[spoiler: but he took Wataru's three servants with him, and he was his father]].
** Ryuki's World: Kamen Rider Abyss is defeated, [[spoiler: but it's revealed that he is the Paradoxa Undead and escapes]].
** Blade's World: Paradoxa Undead and The Joker Undead are defeated, [[spoiler: but Sakuya and Mutsuki's life energy are drained to make the Joker card]].
** Faiz's World: The Tiger Orphenoch and Lucky Clover are defeated, [[spoiler: but now everyone knows that Takumi is an Orphenoch, which may mean that he will be suspended soon]].
** Agito's World: Taurus Ballista is defeated, [[spoiler: but if Kuuga's world had anything to show, it's that the Yashiro in Agito's World may not live that long as well]].
** Den-O's World: The Alligator Imajin is defeated, [[spoiler: but the fight is far from over]].
** Kabuto's World: The Phylloxera Worm is defeated, [[spoiler: but Souji is stuck in clock up forever]].
** Hibiki's World: Gyuuki is defeated, [[spoiler: but Hibiki also dies, as it took over him]].
** Negative World: The Dark Riders are defeated, [[spoiler: but it's still [[WorldHalfEmpty half-empty and Dark Kiva is still around...]]]].
** Diend's World: Jashin 14 is defeated, [[spoiler: but Junichi declares that his brother is dead to him and that he will become the next Jashin]].
** Shinkenger's World: Chinomanako is defeated, [[spoiler: but the fight with the Gedoushou still lingers, and there are far [[HellOnEarth worse]] [[BodyDouble things]] to come]].
** Black RX's World: Schwarian and Apollo Geist are defeated, with the latter retreating, [[spoiler: but Natsumi dies. She gets better though]].
** Amazon's World: Llumu Qhimil is defeated, [[spoiler: But there is still a safe bet that Amazon's World is still under Daishocker control]].
** The Rider War World: Apollo Geist is defeated for good, [[spoiler: [[DownerEnding but the worlds have fully merged, and the 9 riders attack Tsukasa with Kaito shooting him in the face.]] It gets worse in The Last Story]].
*** FridgeBrilliance: This is probably why Narutaki is against Decade, although he does save the world, he somehow still makes it worse.
**** And as we learn later his presence in each world is connecting them. The Tagline is right.
* BodyHorror[=/=]ShapeshifterWeapon: The Final Form Ride technique that Decade uses. They get used to it quick enough, but...''Riders aren't supposed to bend that way''. All of them have their head fold into their body.
*** As a note, most of the Final Form Ride transformations seem to be based on the [[MerchandiseDriven toy version]], hence the Blade Blade's obvious handle and Den-O's head being folded in.
*** An additional detail is that the guest Riders can assume Final Forms [[VoluntaryShapeshifting at will]] after the first transformation, as long as Decade is still around.
**** Subverted with Kuuga in ''The Last Story'', who turns into Ultimate Gouram without the use of a Final Form Ride card. [[spoiler:Doesn't stop Decade Fury Form from kicking his ass, though.]]
** Kuuga gets the Gouram shell sprouting from his back and his legs becoming pincers for his new insectoid form.
** Kiva uses it to do mega splits and shoot arrows from his crotch.
** Not only do Ryuki's legs do mega splits, but his normal weapons take over his body.
** Blade gets his spine bending in ways it really, really shouldn't.
** Faiz has his arms disconnect at the sockets and rotate around to his back. Not nearly as bad as some of the other examples, but still painful.
** Agito turns into his own bike. His body doesn't have to twist too much, but he ''is'' staring down at the ground the whole time while Tsukasa rides atop him.
** Den-O's body does have to do some twisting, but his Final Form Ride is...Momotaros, which is his natural form anyway. Even then, he [[RunningGag complains]] about the PainfulTransformation, both in ''Hibiki'' world and ''All Riders''.
*** However, his Final Attack Ride...well, let's just say Yuusuke's butt is gonna feel ''that'' for a month...
*** To make this truly ''weird'', remember that Kuuga's Final Form Ride form means that it ''should'' be that that weapon is stuck in his ''HEAD'', given the way he achieves Gouram state.
*** And let's not forget that, unlike the other Final Form Rides, Decade transforms Den-O not by stabbing him in the back with his fingers, but by folding the guy's head in ''manually''...and fairly roughly, I might add.
** Kabuto folds in half at the waist, as if he were doing mega toe-touching stretches.
** Hibiki's body does the usual bending in painful ways when he becomes a Disc Animal, but the worst part is that he's used as a drum by Tsukasa.
*** Pausing at the moment where he finished transforming reveals another case of split legs, turning into the Animal's wing, as well as its head coming from Hibiki's crotch.
*** Like Den-O, Hibiki has Decade perform a different "activation pose"; unfortunately, it looks like nothing so much as an athletic butt slap.
** Decade gets a taste of his own medicine in ''All Riders vs. Great Shocker''. When Diend shoots Decade for his Final Attack Ride, he transforms to a giant version of his belt, the Jumbo Decadriver. This includes him doing mega-splits just like Kiva and Ryuki.
** The ''Decade[=/=][[Series/KamenRiderDouble Double]] Movie War 2010'' gives us a Final Form Ride for Double, which turns him into...[[spoiler:Double Doubles. Really. The FFR splits Double [=CycloneJoker=] into Double [=CycloneCyclone=] and Double [=JokerJoker=], controlled by Philip and Shotaro separately. Still qualifies as BodyHorror when you remember that at this point, Double is just Shotaro, meaning that the FFR split ''him'' in two as well and handed control of one of the bodies to Phillip.]]
* BolivianArmyCliffhanger: [[spoiler:The final episode...]]
** For a straighter example of BolivianArmyEnding, there's [[spoiler:Gackt/Riderman.]] Not an actual ending, but the circumstances still count.
* BookEnds: Natsumi's first words in the show was "Decade...", her last words in the show were "DECADE!" the difference was in the mood. [[spoiler:There was also the Rider War as well.]]
** Tsukasa's last hairstyle in ''The Last Story'' is the same one he started the series with.
* Brainwashed: A somewhat ambiguous example. Diend seems to have this effect on the Riders he summons VIA the DiendDriver. The most notable example is during the Hibiki arc, when he summons Momotaros to distract Decade temporarily. Which is odd, as Decade and the Den-O group separated on good terms. (Thus, they wouldn't have a reason to fight) It explains why Momo was willing to pound the guy's head in, though.
** The ambiguity of the example stems from the fact that the show never explains if Diend is actually summoning the Riders themselves, or summoning duplicates of them; instead just implying the former.
* BrainwashedAndCrazy: [[spoiler:Happens to poor Yuusuke a grand total of three times, in Diend's World, ''All Riders vs Dai-Shocker'', and in the final episode, which carries over into ''The Last Story''. Though in the Diend World it's more like "Brainwashed And ''Mellow''".]]
* BrickJoke: when Daiki first appears in ''All Riders,'' he reveals to have stolen [[Series/KamenRiderAmazon Amazon's]] Gigi bracelet ''again''. The end of the movie shows him giving it back.
* BunnyEarsLawyer: Tsukasa proves to be surprisingly intelligent despite his ditzy behaviour. (The plan he successfully executes in the second episode is his first step on the road to {{Magnificent Bastard}}hood.) Ironically enough, he plays a lawyer in the World of Ryuki.
* ButNotTooForeign: While the new Amazon is played by an actual South American (Enrique Sakamoto, who is Peruvian), he's still half-Japanese.
* ButtMonkey: Yusuke gets hit with this hard in Den-O's World. [[AssShove Literally.]]
** And given that Kuuga Gouram's ass is normally Yuuske's ''Head'' in human form....yeah, double ouch, or would be if it wasn't for the fact that somehow his ass becomes his head in Gouram form.
* ByThePowerOfGreyskull[=/=]InTheNameOfTheMoon: Tsukasa's {{Catchphrase}} alternates between the two, depending on the episode.
* TheCameo: Toshiki Kashu appears as [[Series/KamenRiderAgito Shoichi Tsugami]] at the end of ''All Riders''.
** Joji Yuki (Riderman) in ''All Riders'' is played by {{Gackt}}.
* CameraFiend: Tsukasa
* CanonForeigner: Kamen Rider Abyss, a completely new Rider for ''[[Series/KamenRiderRyuki Ryuki]]'' based on Abysshammer and Abysslasher, two shark Mirror Monsters from the original series. Kivaara is also one. Kamen Rider Amaki can technically count as well, as Akira's short transformation in ''[[Series/KamenRiderHibiki Hibiki]]'' never gave us an Oni name or a good view of her armor.
** Abyss makes for an interesting point; when ''Series/KamenRiderDragonKnight'' was in production, people wondered if he would be adapted into it. However, according to official sources, Abyss is considered part of the ''Decade'' license rather than the ''Ryuki'' license, meaning they couldn't have added him even if they had wanted to.
* CardBattleGame: Has elements of this, thanks to the heavy-handed inspiration from the actual CardBattleGame, ''Kamen Rider Battle: Ganbaride''.
* TheCassandra: Narutaki
* CastingGag: N-Gamio-Zeda is voiced by the narrator from KamenRiderKuuga.
* CatchPhrase: "''I'm just a passing Kamen Rider. Remember that!"''. Also, "''This will tickle a bit''" or Diend's "''The pain will last only a moment''" before using any Final Form Ride the first time. (Yeah, [[BodyHorror no kidding]].)
** Don't forget Narutaki's [[foldercontrol]]

[[folder: ONORE, DIKEIDO! ]]

*** Though this one only applies to the Net Movies, as he [[BeamMeUpScotty only ever says this line once in the show proper]].
* CatchphraseInterruptus: Momotaros begins his "Ore, Sanjo!" when Diend summons him as Den-O, only to be cut off when a shot in the back Final Form Ride turns him into himself. He begins to chew out Diend before starting the battle.
** Den-O also gets his "Ore, Sanjo!" catchphrase interrupted by a Dai-Shocker {{Mook}} in All-Riders. HilarityEnsues.
* CerebusRetcon: [[spoiler:Natsumi going from {{tsundere}} comic relief to '''Tsukasa's killer''' in ''The Last Story''.]]
* ChekhovsGun: The photograph of Tsukasa that was taken by Natsumi near the beginning of ''The Last Story'', [[spoiler:which is what is used to revive Tsukasa for the final battle.]]
** At the end of the third episode in the series, when Yuuske is riding off, you get a view of a small, white bat-like thing similar to Kivat from Series/KamenRiderKiva. Kivala soon becomes a recurring character traveling with Tsukasa and the others. Finally, in the last Decade movie...[[spoiler:she becomes Natsumi's transformation trinket.]]
* ChekhovsSkill: Every universe grants Tsukasa a new identity (see UndeadTaxExemption below), and the identity comes with the relevant skills for the job. These skills are ''always'' important in resolving the plot of that world in some way.
** And then there's ''Hikari-style Laughing Pressure Point!'', which gets played like a BigLippedAlligatorMoment at first, but turns out useful for freeing Tsukasa from Imajin posession, or exposing a Worm mimicking him. Used once again on a mook in the finale [[spoiler:in her Kamen Rider Kivala form, with the blade hilt]].
* {{Cloudcuckoolander}}: Tsukasa, who often uses the excuse that he is "not of this world".
** Hikari Eijirou doesn't have that excuse, though. He can appreciate Tsukasa's messed-up photos - [[TheCuckoolanderWasRight and after a while, other people agree.]] Also note his interactions with Kivaara.
* CombinedEnergyAttack: The Final Kamen Attack Form Ride card in ''All Riders vs. Dai-Shocker''.
* ContinuityNod: In ''All Riders'', Yuusuke uses his precursor's trademark thumbs-up for the first time.
** When summoned in ''Hibiki'' world, Momotaros freaks out over seeing Oni Riders, seeing as he had to deal with another kind of Oni in the ''Den-O X Decade'' movie.
** Tsukasa in ''Super Hero Taisen'' gets back his hairstyle from ''Movie Wars: Last Act'' [[spoiler:as the Shocker Great Leader.]]
* CrisisCrossover
* CrouchingMoronHiddenBadass: Tackle, in the movie. Unlike [[Series/KamenRiderStronger the original Tackle]], this younger AlternateUniverse version of her appears to be kind of a ditz and briefly becomes pretty much the [[Characters/XMen90sMembers Jubilee]] to Tsukasa's {{Wolverine}}. Then she beat seven Mooks in one hit and forced a monster to retreat, saving Natsumi and effectively helping to revive Decade, all while [[spoiler: being DeadAllAlong]].
* CurbStompBattle: Decade's first battle with [[SuperMode Complete Form]], where he trounces the Dark Riders (Ryuga, Orga, Dark Kabuto) by summoning Ryuki Survive, Blaster Faiz, and Hyper Kabuto one after the other and blasting the Dark Riders into oblivion.
* DarkAgeOfSupernames: Both played straight and averted with [=DiEnd=], as his name is creatively misspelled, but actually means The End, not Die End.
* DarkWorld: Nega World, a world inhabited by dark Riders and a twisted negative of Natsumi. [[spoiler:Who isn't actually twisted or negative but still human. But all of Natsumi's old chums became meanies.]]
* DarkReprise: Pay attention to the music that plays during TheReveal of the Great Leader in ''All Riders vs. Dai-Shocker''.
** A non-musical example: Upon meeting Decade, [[Series/KamenRiderBlackRX Black RX]] declares that he won't have his way with his world and prepares to attack him, but is stopped by Natsumi. Guess what happens when Decade crosses into the DarkerAndEdgier parallel world of ''Series/KamenRiderBlack'' alone?
* DeadAllAlong: [[spoiler:Tackle]] in Final Chapter.
* DeadpanSnarker: Tsukasa
* DeathFromAbove: About two-thirds of the way through the series, Kaitou takes to firing his Attack Ride - Blast upwards, causing it to rain down on a small area and hit several opponents at once.
* DemotedToExtra: Kuuga, until ''Agito'' world onwards. Probably the worst expression of this is the Hyper Battle DVD, which marks the one and only time [[SuperMode Decade Complete Form]] summons Ultimate Kuuga using the K-Touch - while Yusuke stands off to the side doing nothing.
* DepartmentOfRedundancyDepartment: The name of [[Series/KamenRiderBlade Blade]]'s Final Form Ride is the Blade Blade.
** And Diend having to use "Attack Ride - Diend Blast" when his weapon is already a gun...
*** His default shots are like shotgun blasts. Diend Blast gives his shots rapid-fire ''and'' homing properties. In later episodes it lets him make it ''rain Lasers''.
** It might also have to do with the fact that Decade has his own "Attack Ride - Blast" card and the staff [[OneSteveLimit may have wanted to avoid duplicating names]].
** A brief moment in Diend World:
--> Junichi: "Yes, Kaitou - Daiki Kaitou is my younger brother."
--> Natsumi: "That would mean you're Daiki's elder brother!"
--> Tsukasa: "[[LampshadeHanging That's really unnecessary...]]"
** Also Ryuuki-Decade who had a [=DragVisor=] on his arm (for loading cards) but still has the Decadriver (for loading cards). Similarly, AU!Ryuki now turns into Dragreder, when Riders should all have their contracted monsters, meaning Dragreder should exist; and Kabuto turning into his own Zecter when the actual Zecter is still on his belt.
** Tsukasa and Yuusuke's conversation in Den-O world:
--> Tsukasa: (referring to the [[CoolTrain Denliner]]) It's a train that travels through time.
--> Yuusuke: [[IdiotHero What's a train that travels through time?]] You mean, like a time machine?
* DepthDeception: When Den-O's series Final Form Ride activates (turning Den-O into Momotaros), the closeup leads the viewer to believe it's Momotaros gone giant...but it's just an illusion.
* DetachmentCombat: Jouji Yuuki a.k.a. [[Series/KamenRiderV3 Riderman]].
* DisneyDeath: in ''All Riders'', [[spoiler:Eijiro Hikari a.k.a. Dr. Shinigami, destroyed by three Final Attack Rides, yet appears fine in the final scene of the movie.]]
* DittoFighter: The Jumenki, ruler of Amazon's world, doesn't transform into any new-gen Rider like Decade does but he can perform any of their attacks.
* DoesThisRemindYouOfAnything: "Tsukasa, have you eaten sea cucumber yet?"
* DoItYourselfThemeTune: "Ride the Wind" by Masahiro Inoue (Tsukasa) and "Treasure Sniper" by Kimito Totani (Daiki).
* DoppelgangerAttack: Decade's Attack Ride: Illusion. He uses this against Knight's Trick Vent in Ryuki World, resulting in three Decades fighting four Knights. Diend gets his own Illusion card in Amazon's world.
* DrosteImage: Complete Form has a card on its forehead. This card has an image of Complete Form, which also has a card on its forehead. This repeats into infinity, and is exploited for the Complete Form TransformationSequence.
* DynamicEntry: The AR Riders in ''The Last Story''.
* EarlyBirdCameo: Series/KamenRiderDouble first appeared in ''All Riders vs. Great Shocker'' before taking over Decade's timeslot.
** ''Movie War 2010'' sees Ryu Terui in TheStinger before he properly appeared on TV. And as mentionned in BodyHorror above, [[spoiler:Double [=JokerJoker=]]] is either this or HilariousInHindsight in regards to [[spoiler:Kamen Rider Joker from ''Double''[='=]s second movie]].
** Decade himself got the treatment in the AffectionateParody short, Film/KamenRiderG.
* EarnYourHappyEnding: [[spoiler:''Everyone'', especially Tsukasa! After everything that happened throughout the series and everyone dying at least once (except Daiki), Tsukasa's death restores all the AR Worlds to normal and revives everyone who died in the Rider War, even the ones he didn't kill himself. The AR Riders return the favor by reviving Tsukasa and join him in destroying Super Shocker for good. While some people remain dead (though exactly who isn't really made certain. Yashiro is shown to still be dead, but Wataru (AU) says all their friends came back to life), everything is back to normal and everyone is able to return to their normal lives. Tsukasa and company are now free to wonder the AR Worlds as they please and enjoy their adventure.]]
* EnemyMine: In Rider War World, the Kaijin allied themselves with their worlds' Riders since the penalty for defeat is [[TheEndOfTheWorldAsWeKnowIt The End Of Their World]].
* EpicFlail: [[strike:Den-O]] Momotaros' Final Attack Ride; it's doubtful, however, that Yusuke/Kuuga would be happy to participate in it again...
* EstablishingCharacterMoment: Tsukasa's first action outside of being Decade is looking at some pictures, ducking and weaving from people attacking him, and only lamenting that his picture taking is a failure, perfectly summing up his character. As Decade? How does killing every single rider sound?
* EvilCannotComprehendGood: Tell Diend about a treasure greater than the cool weapon he's trying to steal, and he assumes you're talking about some kind of [[MoreDakka better weapon]]. Though sometimes, mainly in the later part of series, he does get it. And on one occasion he gets that the greater treasure is friendship and tries to take it away anyway just to be a dick.
* EvilLaugh: [[http://www.youtube.com/watch?v=vNQ0PfBoi5Y Narutaki sure has his fair share]] of evil chuckles when Decade finds himself in a hole.
* TheEvilsOfFreeWill: The situation in Diend's world. Be nice to everyone or get brainwashed.
* EvilTwin: [[spoiler:The Nega World's evil Riders took on the forms of Natsumi's friends from the TG Club.]]
* ExpositoryHairstyleChange: Played with by Tsukasa, who gets his hair done up differently in each world he travels to.
** It is also noted that the protagonist New Generation Kamen Riders before Decade tend to have long hair or have their hair in chin length, which seems to be a RuleOfCool since ''Series/KamenRiderKuuga''. Tsukasa is one of the few protagonist Heisei Kamen Riders with obviously short hair.
** That's also what happens when an Imagin possesses you. If it was true enough for ''[[Series/KamenRiderDenO Den-O]]'', which was the only Heisei Rider world that came relatively unchanged to ''Decade'', then it's true enough for ''Decade''.
* {{Expy}}: In a rather odd example, Yuki, the Fangire Queen from the A.R. Kiva world, is an Expy of Mio Suzuki from the original Kiva - and is played by the same actress, Yuria Haga. She doesn't act like Mio, however, [[spoiler:and was swiftly dispatched by Decade and Diend.]]
* EyepatchOfPower: Sou/[=TheBee=] in the new ''[[Series/KamenRiderKabuto Kabuto]]'' world.
* EyeScream: Let's just say that Yusuke had a close call in ''Agito'' world. [[note]]Still arguably painful, though, as the attack pierced G3's helmet, and Yusuke was visibly wincing.[[/note]] Likewise [=TheBee=] later, although only in a flashback.
* FaceHeelTurn: Decade makes a HARD turn in the final episode. He quickly fulfills his role as the destroyer of the worlds, as seen in the opening scenes of the second movie.
* FakeShemp: Faiz in ''The Last Story''; it's intended to be Takumi Ogami (the AR version), but we never see him out of costume or hear him speak.
** Also, most Heisei Riders in All Riders vs Dai-Shocker, just grunt or don't make any sounds at all. That's because, according to some extra material, like character guides and even the official site, they're supposed to be the original Riders, but there was only one returning actor out of the 8 previous Heisei Riders there (not including Kuuga, who was Onodera, not Godai).
** Most riders from ''all'' eras in that movie, and in the next. Not only was the original Riderman actor long gone by the time of this series, well, if a Rider is just going to grunt while doing a couple kicks, there's no need to go to the trouble of getting the actor back.
* FantasticCasteSystem: BOARD in the new ''Blade'' world ranks everyone at the company with an iron grip.
* FearfulSymmetry: In ''[[Series/KamenRiderKabuto Kabuto]]'' world, Tsukasa and a Worm that's imitating him square off evenly until Natsumi's thumb jab reveals who's who.
* FinalBattle: The Rider War.
* FingerPokeOfDoom: Natsumi's nerve thumb attack seems to channel fellow {{Tsundere}} Sun Shangxiang from the movie ''RedCliff'', except that one triggers laughter and the other, unconsciousness.
** It makes humans laugh; Worms, however, cry instead, much to her surprise.
* {{Foreshadowing}}
** An inhumanly subtle piece of foreshadowing crops up when the Riders are leaving at the end of ''All Riders vs Dai-Shocker''. Momotaros tells Tsukasa not to summon him again because he's super busy. He's referring to [[strike:his constant WolverinePublicity as described on that page]] the new trio of ''Cho Den-O'' movies that are in production. Yet Momo's kind enough to betray his words just once and save Tsukasa's ass from Super Shocker's army in ''Movie War 2010''. (Mind you, that movie was released before the ''Cho Den-O'' trilogy was even announced.)
** In Hibiki World, Tsukasa seems to be a little bit enthusiastic when Hibiki told him he's the ''daishishou'' [[note]]''Great'' Master[[/note]] of the three Ongeki arts, possibly stirring something up from his memory.
*** Also, in Kabuto's world, he seemed to be a little attached to Mayu, almost like a sister to him.
** Also from Hibiki World, but it foreshadows something else: [[spoiler:Narutaki explicitly saying that Natsumi will be the "end" of Decade's journey.]]
** You know the part in the opening where the Heisei Riders rush towards each other? Take a look at who's in front. [[spoiler:Guess which two fight each other in the Rider War world.]]
** Diend's world turns out to be home to the ''movie-exclusive'' Blade riders. Guess what Diend Complete form does?
** At one point, Grandpa Hikari talks about people hiding their true selves, ''as he irons a cape that's red on one side and black on another.'' He also pokes Kivala with a hot iron at one point - the kinda comedy injury that happens in this show and nothing Kivala probably hasn't deserved at some point, but kind of {{Jerkass}} by ''his'' standards. [[spoiler: ''Now'' does his turning out to be Dr. Shinigami come out of left field?]] It also explains how he knew about the Mole Beastman. It was a one-off reference, but if [[spoiler: Shocker's Great Leader always turned out to be behind the old-school villains, it's not odd that a Shocker general would know about him.]]
* FreezeFrameBonus: When the Decadriver scans a [[JokeItem Den-O card]], for a few seconds you can see ''Diend'' written on its display. Does this mean that those cards are actually meant for [[MarionetteMaster Diend's]] use?
* FreudianTrio
** Superego: Tsukasa
** Id: Yuusuke
** Ego: Natsumi
* GenderFlip: The early worlds, written by Sho Aikawa, all had minor changes that fit here. Ichijo Kaoru's role is replaced by female detective Ai Yashiro. Prince Wataru is the son of a female human violinist and a Fangire King, rather than a human male violinist and a Fangire Queen. The name of the newspaper in the new Ryuki world is Atashi Journal, (Atashi is a feminine "I") rather than "Ore" Journal (Ore is a rough, masculine "I").
** But then, Ai Yashiro is also the effective equivalent of Sakurako.
* GeorgeJetsonJobSecurity: BOARD in Blade's world. It's laughably easy to be demoted and fired for minor mistakes, even when carried out with the best of intentions. This may have more to do with the boss than anything else.
* GetAHoldOfYourselfMan: Yuki Johji in TheMovie can do this [[BadassNormal WITH HIS GOOD ARM]].
* GiantEnemyCrab: The final battle of ''[[Series/KamenRiderHibiki Hibiki]]'' World sees one of these.
** They even [[PowerOfRock Rock]] [[AttackItsWeakPoint Its Weak Point]] ForMassiveDamage.
* GiantSpaceFleaFromNowhere: [[spoiler:King Dark.]] No foreshadowing whatsoever.
* GoldenSnitch: Kamen Rider Odin, or rather, his Time Vent card, becomes this in Ryuki's World. Odin doesn't partake in the trial process and only fights Riders who pick a fight with him. Whenever a Rider gets defeated, the Rider who defeated them gains their cards, and so they'd get Time Vent. Once getting Time Vent, a simple time warp and prevention of a murder or whatever caused the trial in the first place is pretty easy and can technically count as the rider winning. However, first they must beat Odin, and he's just as powerful as he was in the original.
* GottaCatchThemAll: Diend's power revolves around "catching" stuff from other Riders. So essentially this is ''VideoGame/MegaMan'' fighting a ''{{Pokemon}}'' Trainer.
*** Or, more precisely, ''VideoGame/MegaMan'' fighting a Pokémon Trainer by way of ''Franchise/YuGiOh''.
** GottaCatchThemAll through KillEmAll: In ''The Last Story'', [[spoiler:Decade must kill all Riders and collect the cards left behind by their explosive deaths. Why? Because it turns out that their cards are the key to restoration of the multiverse.]]
* GrievousHarmWithABody: All of the Final Form Rides to some extent, but when you have Momotaros using Final Form Ride Yuusuke as a blunt weapon...the guy just can't catch a break.
* TheGunslinger: Diend, as his gun is both his TransformationTrinket and primary weapon.
* TheHeart: Yusuke, who tends to work with the other Riders on an emotional level, something Tsukasa's not that good at.
* HeelFaceRevolvingDoor: [[spoiler:In ''All Riders vs. Great Shocker'', when Tsukasa regains his memories he resumes his role as the evil leader of Great Shocker...briefly, as he is usurped by [[Series/KamenRiderBlack Shadow Moon]] and his sister. Witnessing his friends leave him for betraying them, and getting an inspirational speech about being a Kamen Rider from Riderman put him back on the track to destroy Great Shocker once and for all.]]
** [[spoiler:Tsukasa turns yet ''again'' in ''The Last Story''. [[RogueProtagonist In the eyes of everyone, that is.]] And he's still basically a good guy.]]
** In addition, Kaito's loyalties at any given point appear to be determined by the flip of a coin.
* HeelRealization: Part of Diend's backstory.
* HeroicSacrifice: [[spoiler:Tsukasa allows Kiva-la to impale him on her sword in order to complete his mission and restore the multiverse and all the Riders. He gets better.]]
* HeroWithBadPublicity: Courtesy of Narutaki spreading rumors of Decade being the "destroyer of worlds".
* HeyThatsMyLine!: During the Hibiki arc, Kaito delivers the speech defending the local Kamen Rider instead of Tsukasa, who protests that Kaito's stepping on his bit.
--> "'Let me say this - ''I'' was "a passing Kamen Rider" before you ever were!"
* HighPressureBlood: Amazon's victims have this.
* HighSchoolAU: ''Series/KamenRiderFaiz'' turns into one of these.
* {{Homage}}: Tsukasa in ''All Riders vs. Great Shocker'' resembles ''Manga/KamenRiderSpirits''[='=] BigBad, Judo. Which makes sense as both are [[spoiler:personifications of the Great Leader and have similar respective powers to transform into Riders of their era, Decade being able to transform into the nine main Hesei Kamen Riders (Kuuga to Kiva), while Judo is able to transform into the eight main Showa era Kamen Riders (Kamen Rider-1 to Super-1) as well as a golden version of [[Film/KamenRiderZX ZX]]. Judo doesn't take Riderman's form as he is considered a secondary Rider as well as more of a BadassNormal than the others.]]
* HopeSpot: After Decade's incursion into the [[spoiler: World of Negatives,]] Nega-Kiva is the [[spoiler: only remaining Rider in that reality]] who, most likely out of fear of a [[CorneredRattleSnake mounting Human Resistance out to defeat him once and for all,]] goes into hiding.]] And then [[spoiler: Decade resets the Multiverse, per his role; probably wiping this reality clean off the map......]]
* HulkSpeak: Amazon, which was true for his [[Series/KamenRiderAmazon original self]] too, although AU Amazon is considerably more fluent.
* IdiosyncraticEpisodeNaming: Played with. Series originally using a particular episode naming pattern, such as [[Series/KamenRiderKuuga Kuuga]], [[Series/KamenRiderKiva Kiva]] and [[Series/KamenRiderHibiki Hibiki]], have at least one episode named with the same pattern in Decade.
* IfItSwimsItFlies: Kamen Rider Abyss manages to invoke it's power with his Final Vent.
* IKnowYoureInThereSomewhereFight: Variant - [[spoiler:Tsukasa tries to talk ''not'' to the brainwashed Ultimate Kuuga, but to his sister Sayo, who was controlling the latter.]]
* [[IWasJustPassingThrough I'm Just A Passing Kamen Rider]]: [[CatchPhrase Remember that!]]
* ImageSong: The Next Decade, in {{Gackt}}'s able hands, essentially becomes this for his version of Riderman. And it is, as noted, '''[[CrowningMusicOfAwesome awesome]]'''.
* InMediasRes: ''All Riders'' begins this way.
* InnBetweenTheWorlds: Hikari Studio.
* IntercontinuityCrossover: As if jaunting between AU worlds of previous Kamen Riders wasn't enough, episodes 24-25 are a crossover arc with ''Series/SamuraiSentaiShinkenger'' that is canon for both sides.
** And 2012 will see Tsukasa taking on his Sentai opposite number [[Series/KaizokuSentaiGokaiger Captain Marvelous]] in ''Film/KamenRiderXSuperSentaiSuperheroTaisen''.
* ItCantBeHelped: In a stage production, there was a skit about [[Series/KamenRiderFaiz Faiz]], [[Series/KamenRiderKuuga Kuuga]], [[Series/KamenRiderRyuki Ryuki]], [[Series/KamenRiderKabuto Kabuto]], Decade, and Diend being hungry and wanting to get a bite to eat. Decade argues with the other Riders about how there's no time, but Faiz calls in a reservation at [[Series/KamenRiderKiva IXA's]] italian restaurant anyway. [[http://www.youtube.com/watch?v=qwECY4zYR7s Hilarity ensues.]]
* ItsNotYouItsMyEnemies: [[spoiler:AU!Agito's reason for abandoning the G3 Unit, and Toko Yashiro.]]
* JerkWithAHeartOfGold: This show is ''Kamen Rider Very Kind Jerks''. There's a good reason why fandom calls Kaitou a Troll and Tsukasa's nickname is ''Dick''eido.
* [[JokeWeapon Joke Cards]][=/=]PowerupLetdown: The set of Attack Ride cards for Den-O's forms lets Tsukasa perform their InTheNameOfTheMoon poses and {{catchphrase}}s...and nothing else.
** Though in Episode 19, Ax Form gets an actual attack; it just proves ineffective because of the strength of the enemy it was used against.
** The costume design book ''Detail of Heroes 04: Kamen Ride'' shows that they did in fact make Form Ride cards for Den-O (including Wing Form), as well as another attack for Ax Form, but they [[DemotedToExtra were never used]].
* KickTheDog: In ''Agito'' world, Diend commands a summoned [[Series/KamenRiderFaiz Delta]] to Rider Kick [[strike:Decade]] ''Tsukasa''. [[note]]He's not in Rider form because that universe's version of Gills stole his Decadriver.[[/note]] Thankfully, Yusuke was there to stop it.
* KickTheSonOfABitch: If one sees Tsukasa as the villain of the piece (being the "destroyer of worlds" and whatnot), this could be how to describe his destroying the Perfecter as he throws it to Apollo Geist.
* KidHero: The AR World versions of Kiva, Den-O, [[spoiler:and eventually Hibiki.]] Considering ''Franchise/KamenRider'' is and always has been a kids' show, this should come as no surprise.
** Three years later, it transpires that the [[spoiler:Wizard AR World also has a kid hero.]]
* TheKidWithTheRemoteControl: In the warped version of ''Series/KamenRiderKiva'', Wataru is a young boy who still has most of the powers of Kiva, including Castle Doran and the Arms Monsters, but no Tatsulot or Emperor Form.
** Though AU Wataru was shown using the Zanbat Sword in his regular Kiva Form during the Rider War against Blade, Garren, Leangle and the Undead. [[spoiler:And uses the Emperor Form thanks to Decade, in ''The Last Story''.]]
*** Curiously, the original Wataru goes on to use the Zanbat Sword in regular Kiva Form in the rerun version of Decade episode 31 and later yet again in the movie OOO, Den-O, All Riders: Let's Go Kamen Riders.
* LampshadeHanging: Amid fandom complaints of ''Decade'''s story being incomprehensible or pointless, Natsumi wonders what the point of traveling to new worlds is by the end of Amazon's World, while Wataru declares late in the show that "Decade has no story".
** Which could also be a nod to the fact that Decade doesn't really have any original enemies either, instead fighting revived or modernized versions of older ''Kamen Rider'' villains (or OriginalGeneration characters based off of same, such as new [[Series/KamenRiderKuuga Grongi]] or [[Series/KamenRiderDenO Imagin]]). The closest he gets is [[spoiler:Ultimate D from ''Movie Wars 2010'', and even he's a result of [[Film/KamenRiderZO Neo-Organism]] merging with the [[Series/KamenRiderDouble Dummy Dopant]].]]
* LargeHam: The Dai Shocker commanders, save Apollo Geist, are ''very'' hammy.
* LaserGuidedAmnesia: Subverted in that Tsukasa's amnesia isn't very laser-guided. He knows his name. He knows he's from another world, but he doesn't know what world he's from. He recognizes familiar people and places in detail, recognizing the world he just travelled to as Kiva's world as soon as he saw Castle Dran and even telling [[Series/KamenRiderRyuki Knight]], "I know all about you".
* LastNameBasis: Subverted for Diend, where Natsumi and the residents of Diend World are the only characters with enough respect to call him Daiki.
* LaserGuidedKarma: [[spoiler:Kaito's Diendriver is rather violently stolen from him]] in Shinkenger's World. When Tsukasa finds out, he has a good laugh and mocks [[spoiler:Kaito as "the robber who got robbed".]]
** While Natsumi was arrested in Ryuki's world, Tsukasa constantly teased her by calling her "criminal", since she couldn't hit him with her Laughter Pressure Point while in cuffs. After going back in time and preventing Natsumi from getting arrested, she manages to hit him with a Laughter Pressure Point at the end.
* LegacyCharacter: [[spoiler:Hibiki passes his TransformationTrinket on to Asumu before his Oni powers go out of control and necessitate a mercy killing.]]
* LegionOfDoom: Dai-Shocker, an organization seeking to unite all of the evil organizations and monster races in the franchise's entire history together to defeat the Riders and [[MultiversalConqueror conquer the multiverse]].
** TheRemnant: Super Shocker in ''The Last Story'', formed from the leftovers of Dai-Shocker's army.
* LessEmbarrassingTerm: Decade's armor isn't pink, dammit, it's ''magenta''!
* LetsGetDangerous: "I'm a passing Kamen Rider. Remember that. Transform!"
* LetsYouAndHimFight: Almost every time Decade steps into a new world.
* TheLittleShopThatWasntThereYesterday: Hikari Studio, which seems to supplant whatever shop was there before it arrives in the world. Crosses into MythologyGag as the building being replaced was often the GoodGuyBar (in Kuuga and Kiva) or otherwise significant in the original series.
** Amusingly, after an Imagin tampers with the timeline in ''Den-O'' world, the studio becomes ''attached to the [=DenLiner=]''.
** In Shinkenger, Jii mentions his confusion on how the studio has apparently replaced a ''hospital'' that he was supposed to go to.
* MacGuffin: The Ongeki scrolls in Hibiki's world.
* MadScientist: Joji Yuki/Riderman, who in this reality [[spoiler:made both the Decadriver and Diendriver]].
* MagikarpPower[=/=]LethalJokeCharacter: Despite being [[FanNickname Yuuseless]] for most of the series, Yuusuke eventually gains access to Kuuga Rising Ultimate Form, becoming stronger than even '''the original Kuuga.'''
* [[MakeMyMonsterGrow Make My Decade Grow]]: Diend does this in ''All Riders''. The villain of the Shinkenger World [[spoiler:doesn't do this in spite of technically being a ''Franchise/SuperSentai'' monster because becoming a Rider changed his biology, removing his second giant life.]]
* ManInWhite: Not completely dressed in it, but the original Wataru wears a white jacket and scarf in all his appearances. Contrast to [[spoiler: the original Kenzaki]], who wears all black.
* ManicPixieDreamGirl: Kivaara. Full stop.
** Tackle from ''Series/KamenRiderStronger'' becomes this to Decade in ''The Last Story''.
* MeaningfulName: {{Kaitou}}, as mentioned elsewhere.
** [[spoiler:Also, the "Kama" in Kamata is the kanji for "scythe" which ties into his true nature as the Paradoxa Undead.]]
** Tsukasa Kadoya can be rendered into Passing Through, hence the CatchPhrase "Just a Passing Kamen Rider".
** N-Gamio-Zeda's first two syllables are a sound alike to "End Game", which fits the bill pretty well due to his [[BigBad position]] in Kuuga's world and how his actions are similarly close to how a SeasonFinale of a Franchise/KamenRider show would go.
*** Also, Gamio is an arranged version of Ogami, which is Japanese for wolf, fitting his motif.
* MerchandiseDriven: All BodyHorror examples listed above are entirely the fault of this.
** [[MemeticMutation In other words,]] [[http://i167.photobucket.com/albums/u136/Arrowned/1250746192758.jpg it's Decade's fault.]]
*** [[HilariousInHindsight And considering how it's spilled into]] [[Series/KamenRiderDouble the following season...]]
** It's kind of obvious when the S.I.C. of Kabuto, the next figure released after Decade, can not only be turned into Zecter Kabuto but comes with its own Decadriver that can mount in place of the Zecter, making him AR Kabuto and Decade PowerCopying Kabuto in one package.
*** And now they're making an S.I.C. of Decade!Kuuga, with the ability to turn into the Kuuga Gouram (as well as Amazing Mighty Form). Of course, this could be seen as a justified update, Kuuga is a popular Rider and the original S.I.C. was released in 2001.
* MilestoneCelebration: The tenth anniversary of the Heisi Riders was celebrated in the biggest way possible. And with the Showa Riders getting involved in the crisis by episode 26, this celebration was taken to the next level.
* MirrorUniverse: The World of Negatives is Kamen Rider's take on the concept. While (most) main Kamen Riders are heroes in their designated realities, all depicted Riders are villains in the Nega-Verse who, rather than protect their citizenry, hunt them down for sport. And just to form another contrast to other Rider Worlds, monsters aren't enemies of the Riders, they are instead [[EliteMooks their henchmen.]]
** Though, [[spoiler: Nega-Natsume]] mentions that Humans [[spoiler: [[FantasticRacism aren't considered allowed to exist in the Nega-Verse, implying a universal standard.]]]] Of course, this may or may not have been a depiction of her low self-esteem, as the Nega-Riders are shown simply [[FortheEvulz drunk on their power, rather than doing it for any given reason.]]
** It doesn't help that (What's left of) the Humans barely struggle to survive while the Riders' Monster henchmen cater to the villains' every whim and [[VillainwithGoodPublicity treat them like kings.]]
* {{Mondegreen}}: Lampshaded in Blade's episodes: Tsukasa goes by "Chief" in Blade's world, but Kazuma keeps calling him "Cheese", much to Tsukasa's chagrin.
** This is actually a MythologyGag due to the immense {{Mondegreen}} involved with the line delivering in ''Series/KamenRiderBlade''. The Japanese fandom even invented a language to cover it called [[http://tinyurl.com/ondul Ondulish]].
* MoodWhiplash: In one episode [[note]]the Negative World arc[[/note]], scenes frequently switch back and forth between Tsukasa [[strike:and Yusuke]] hilariously enjoying the rich lifestyle, with Natsumi's heartwarming reunion with the "Dropout" Club she belongs to, [[spoiler:only for the audience to be treated to a flashback of the Dark Riders killing humans (specifically, the AU versions of Natsumi's club members).]]
* MoralDissonance: [[spoiler:The original Kamen Riders apparently thought that the best way to protect the multiverse is by sending Tsukasa to kill the Riders from the A.R. Worlds, and chew Tsukasa out because he helped the A.R. Riders instead, which just made things worse. What makes it pass from [[WellIntentionedExtremist Well Intentioned Extremism]] into this trope is the fact that a Kamen Rider would '''never''' consider this an acceptable course of action and would TakeAThirdOption. Especially since [[Series/KamenRiderBlade one of them]] ''already did'' that in his finale]].
** ''The Last Story'' reveals that [[spoiler:destroying all the Showa and Heisei riders was actually the correct course of action. After doing so (and being destroyed himself) everything went back to normal...if you don't count the fact that Super Shocker still needed to be stopped. Based on that, it's possible that the Riders deliberately attacked Decade in order to provoke him into destroying all the Riders in order to save them. However, this doesn't change the fact that they were willing to let Decade be destroyed in a "needs of the many" fashion.]]
* {{Motifs}}: The show's three primary Riders derive their colorations from the [[http://en.wikipedia.org/wiki/CMYK_color_model CMYK color model]]: Decade is Magenta, Diend is cyan, and Kuuga Rising Ultimate is yellow and black. This fits in with the show's general motif of photography as well.
* MrExposition: Wataru in the first episode; also, Diend.
* [[spoiler:MultiversalConqueror -->]] PlanarChampion: Tsukasa Kadoya
* MyKungFuIsStrongerThanYours: Pretty much the point of Hibiki world. The schools are competing with each other over who can destroy the monsters.
* MythologyGag: Just about everything in the [[strike:past nine years]] ''Kamen Rider'' franchise's entire 38-year history gets shown or referenced during the course of the show.
** Even the American adaptations get a little nod. In ''All Riders'', when all the Riders perform a Rider Kick, you can catch RX and Ryuki appear together in the same shot performing the kick - the two Rider series at the time that became localized in America.
*** In the same vein, the climax of ''The Last Story'' begins with the appearance of [[Film/KamenRiderZO Doras]] and a new [[Series/KamenRiderBlackRX Crisis Fortress]], both of which feature prominently in ''Saban's MaskedRider''.
** Decade's suit is basically a modernized version of ''Film/KamenRiderZX'', ZX being the protagonist of the Showa era Kamen Riders' 10th anniversery celebration.
** [[Series/KamenRiderAgito AU!Shoichi]] becoming [[spoiler:a CompositeCharacter of all three leading Riders from ''Agito'' refers to the fact that the original Shoichi actually spent some time as G3-X, while his Agito Burning Form is a deliberately organic design meant to invoke Gills.]]
** The Final Attack Ride cards all have the Rider logos in gold, just like [[Series/KamenRiderRyuki Final Vent cards]]. Quite appropriate when you got past Riders acting in the context of the mirror monsters.
* NeverTrustATrailer: A particularly extreme version: There was a trailer for the conclusion movie at the end of Episode 31. It showed, amongst other things, [[spoiler:a "real" Tsukasa who was apparently the true villain, a badass Natsumi with a sniper rifle, Kuuga ''killing'' Diend (or at the very least having his arm buried to the elbow in Diend's gut), and Kamen Rider Kivala, who apparently has nothing to do with Natsumi.]] The only place where trailer and film line up is [[spoiler:Kivara fighting Decade]], and even then the scenes are completely different.
** With the release of the Director's Cut version of the conclusion movie, though, Toei seems to have covered their tracks ever so slightly and moved that trailer into CanonDisContinuity by [[spoiler: adding in parts from that trailer (specifically the two Tsukasas) to the dream (a slightly different one from the first episode) Natsumi has at the movie's start.]]
* NotBrainwashed: [[spoiler:Diend's brother Junichi Kaito appears to have been brainwashed by Fourteen's men (Diend finds out about this while still working for Fourteen; he had believed that prisoners were simply rehabilitated); however, after Fourteen is destroyed and everyone is un-brainwashed, Junichi reveals that he had not only been working for Fourteen voluntarily, but he was doing so even before his supposed brainwashing.]]
* OhCrap: In the final episode, everything seems to have turned out relatively well, all things considered. Super Apollo Geist is dead, the crisis is averted...then Natsumi has a flashback to that [[ChekhovsGun dream]] she's been having.
* OmnicidalManiac: Decade is referred to in the opening as the "destroyer of worlds"; similarly, Narutaki either believes him to be this or is telling everyone else that he is. [[note]]In fact, Narutaki was far from wrong; Decade ''is'' the reason why the worlds are getting destroyed.[[/note]]
* OneSteveLimit: Haruka Miwa in Diend's World is based on a character whose name was Natsumi Miwa, but was changed to Haruka most likely to avoid confusion with another Natsumi. It's worth noting here that [[ThemeNaming Haruka and Natsumi contain the Japanese words for 'spring' and 'summer' respectively.]]
* TheOnlyOneAllowedToDefeatYou: Daiki feels this way about Tsukasa.
* OriginalGeneration: Decade himself, as he's the element that ties everything together.
* [[OnTheNextEpisodeOfCatchPhrase On The Next Episode Of]] ArcWords: "''Destroy everything. Connect everything.''"
* PainfulTransformation: Diend's Final Form Ride. "''The pain will only last a bit.''"
** Decade's may or may not hurt, but it sure as hell LOOKS like it.
** In ''All Riders'', Momotaros says that the transformation hurts after Decade uses it. Faiz, Blade, and Kiva don't say anything themselves...probably because A. those three riders lack proper voice actors in the movie and B. a gun, sword, and bow aren't the most talkative of objects.
* PaletteSwap: Parodied in the net videos. Kaitou, sick of not having his own CoolBike, turns Decade's bike into one with his colour scheme by visiting the studio's colour control room and flipping things around. It gets pointed out rather blatantly when Decade enters the scene with a basket of apples, which are (along with his armor) cyan rather than magenta. When Tsukasa points this out, Kaitou rides off with it anyway.
** Which became HilariousInHindsight when the "Machine Diender" actually shows up as Diend's ride in the climax of the 40th anniversary movie ''OOO, Den-O, All Riders: Let's Go Kamen Rider''.
** The Ultimate Gouram is a black version of the Kuuga Gouram.
* PetTheDog: Ryo Itoya, the Spider Fangire, demonstrates that he is not the madman he was in ''Kiva'' and that Fangire are good in this world by cheerfully interacting with some elementary schoolers walking past the photo studio.
** Though we aren't sure if the Spider Fangire had evolved into a different kind of [[{{Lolicon}} predator]].
** In ''[[Series/KamenRiderDenO Episode Yellow]]'', we see that Kaito has an "ulterior motive" aside from stealing a golden gun: [[spoiler:to help Kurosaki/G Den-O connect with his enstranged mother.]]
* PhantomThief: Daiki Kaito, AKA Kamen Rider Diend.
* PhlebotinumBreakdown: In Kabuto's World, Kabuto's Clock Up System is broken, trapping him in constant high-speed.
* PhraseCatcher: Villains seem physically compelled to ask Decade who he is (or, if they already know, who the hell he thinks he is) before a big rumble. Tsukasa always responds with his own CatchPhrase.
* PistolWhipping: Kaito does this to Yuusuke in the Agito's World episodes in order to get the G4 Chip from him. It's enough to knock Yuusuke off his feet, but he's not badly hurt.
* PortalNetwork: The pictures that serve as gateways to the nine other worlds. This makes the portrait studio the HubLevel for Decade.
* PosthumousCharacter: [[spoiler:Yuriko Misaki, AKA Tackle, in ''The Last Story''.]]
* PowerCopying: Decade's powers are the powers of his predecessors, and all things that come with them. He gets Kabuto's [[SuperSpeed Clock Up]] and Faiz's [[TransformingMecha Auto Vajin]] (as Attack Rides) when he uses their powers.
* PowerCreepPowerSeep: There are arguable examples regarding the Heisei Riders, but the main one involves the return of the Showa Riders, especially in the All Riders vs Dai-Shocker movie. Basically, the Showa Rider stat numbers for later shows often gave them ridiculously high numbers compared to the Heisei series (For the most obvious example, Super-1 in the beginning of his own show was stated to have 200 ton punches, which would make him twice as strong as Ultimate Kuuga). However, starting from here, and continuing in the later crossovers not centered on Decade, they're all portrayed in reasonably comparable levels.
* PowerIncontinence: ''Kabuto's'' dilemma.
* ThePowerOfRock: Every rider in Hibiki's world. Decade and Diend join in for an ''epic'' [[http://www.youtube.com/watch?v=tJcuJD62atU jam session]] at the end of the arc.
* PunchPunchPunchUhOh: Decade vs. Den-O Ax Form.
** Also an example of an IdiotBall. Tsukasa actually does the above trope ''twice''; he audibly says "Ow!" on the first one, then ''winds up and punches harder''.
* PunnyName: Decade is pronounced like the word "decayed" which echoes his reputation as a destroyer, and Diend is a pun on "The End", [[spoiler:which plays into the series's cliffhanger ending, where he supposedly kills Decade, and is "The End" to Decade's journey]]
** As sort of a punny pet name, there's "Natsumi-kan" (summer mandarins). Kaitou calls her "Natsumelon", which both Tsukasa and Natsumi herself "correct" (though Natsumi has a "wait a minute" moment afterwards).
* PuppetMaster: Diend, whose Kamen Ride cards can summon Riders to do his bidding. Decade's [[SuperMode Complete Form]] is more literal, creating copies of the nine main Riders in their own [[SuperMode Super Modes]] which copy his movements exactly.
* PuttingOnTheReich: Series/KamenRiderAmazon's world, under the control of Great Shocker by the time Tsukasa arrives, is complete with Great Shocker Youth, with all the agitprop and brainwashing required. Their grunts even wear Nazi uniforms and the civilians salute Hitler-style. Now, where is Starfish Hitler from ''Series/KamenRiderX'' anyway?
** Well it is a reference to the original Shocker organization where its members' origins is related to the Nazis.
* QuestForIdentity
* RealityWarper: The Decade and Diend powers; [[AllThereInTheManual the official website]] says that their respective Drivers take the data from the Rider Cards and, using the power of the six elements, makes them manifest in reality. As if the [[InvoluntaryShapeshifting Final Form Rides]] weren't evidence enough...
* RealLifeWritesThePlot: The reason [[Series/KamenRiderAgito the original Gills and Another Agito]] never appear is apparently because there was a leak in the warehouse and the suits were effectively destroyed by water damage.
* RealMenWearPink: Decade's armor is a lighter shade of red than most, but the pink gi he wears in Hibiki's World tops that.
** [[VisualPun A pink gi in]] [[StreetFighter Hibiki]] [[VisualPun world?]]
*** Not pink, Magenta.
* TheResolutionWillNotBeTelevised: A rare ''intentional'' case of this.
* ReunionShow: Though most of the characters are [[TheOtherDarrin recast]] or [[SuspiciouslySimilarSubstitute replaced]], a good number of actors returned to reprise their roles, even if they're also AU counterparts. This includes most of the central casts of ''[[Series/KamenRiderDenO Den-O]]'' and ''[[Series/KamenRiderHibiki Hibiki]]'', as well as [[Series/KamenRiderKiva Wataru Kurenai/Kiva and Otoya Kurenai/Dark Kiva]], the Riders from ''[[Series/KamenRiderBlade Missing Ace]]'', Kotaro Minami (as both [[Series/KamenRiderBlack Black]] '''and''' [[Series/KamenRiderBlackRX Black RX]]), [[Series/KamenRiderBlade Kazuma Kenzaki/Blade]], and (in the movie only) [[Series/KamenRiderAgito Shoichi Tsugami/Agito]]. The Riders summoned by Narutaki or Kivara (including [[Series/KamenRiderKabuto the Hoppers]], [[Series/KamenRiderFaiz Kaixa]], and [[Series/KamenRiderRyuki Ohja]]) are also voiced by their original actors and are implied to be the real thing. Diend's summons are an odd case, as some have their original actors providing the voice, but seem to just be copies (as evidenced by the fact that a summoned Den-O[=/=]Momotaros has no qualms about fighting Tsukasa after the events of both the Den-O arc and the ''Chou Den-O and Decade'' movie, where they were allies).
** It's strange that the original Agito is one of the ones to demorph and speak to Decade at the end, as ''that'' Agito should not know Decade at all (the World of Agito's Agito was not played by the original actor, and was [[spoiler: a CompositeCharacter of the series' three Riders]].)
** Asakura[=/=]Ohja and Yaguruma[=/=]Kick Hopper return in ''All Riders vs. Dai Shocker'', and though they're never seen un-transformed, they're confirmed as the originals and have their original actors (and catch phrases.)
** While the actors are all new, the cast of ''Amazon'' was very true to the original series, as compared to the "old world with a twist" idea of most of the AR worlds.
* RevisedEnding: The series got [[http://www.youtube.com/watch?v=IonI7PiUBM8&feature=player_embedded a different, and arguably much better, ending in reruns]]. It also ties in far better to ''The Last Story'' than the original ending did.
** The new ending in question is that instead of [[spoiler:Decade's battle with the Original Riders leading up to Diend trolling the viewers by shooting Decade for a cliffhanger, the new ending sees Decade's battle with the Riders rapidly shift into the Rider War [[BookEnds as (exactly, thanks to archive footage) witnessed at the beginning]].]]
** They also cut out [[spoiler:Kivala reviving Yuusuke]] ''but'' left in [[spoiler:Kuuga Ultimate's appearance.]]
** And why they changed the ending in the rerun? [[spoiler:The original "trailer" in the original ending was recorded a few days later after the original ending. But due to some legal and production changes the original plan for the movie, called ''Decade vs All Riders'' and even initially listed in the schedule of some theathers, was scrapped, and changed to the present one.]] Toei changed the rerun ending just to keep in line with ''The Last Story''.
*** Mind you, we ''still'' don't get a show ending that looks like it could lead to the beginning of The Last Story. First ending: [[spoiler: All nine main post-revival Riders - including a BrainwashedAndCrazy Ultimate Kuuga - attack Decade. Finally, Diend shoots Decade in the face.]] Second ending: [[spoiler: As seen in Natsumi's dream in the premiere, primary and secondary new series Riders, along with their bikes, dragons, flying castles, time trains, and what-have-you fight each other to the death. Then Decade arises from nowhere and utterly kablooifies the few still standing. Then Kuuga stands, becomes black-eyed Ultimate Kuuga, and he and Decade Rider Punch each other, causing an explosion that apparently kills both, and spreads to turn the entire view white... did they destroy ''the whole world?!''.]] Neither of these can possibly lead to the events of the Last Story portion of Movie Wars 2010: Riders from ''all across'' franchise history [[spoiler: attack Decade Fury one or two at a time and get slaughtered with little effort. Yusuke, who is himself throughout the movie, eventually can watch no more, and becomes Ultimate Kuuga at will. ''Far'' from evenly matched with Decade Fury, he is taken down just as easily. Decade Fury is eventually taken down by ''Natsumi,'' restoring the multiverse and the Riders, and later Tsukasa's normal self is restored from his friends' memories.]] Apparently, the movie was subject to a ton of last-minute rewrites that resulted in an entirely different film than the one they set out to write when they did the regular series' ending, let alone Natsumi's dream waaay back at the beginning.
* [[spoiler:RogueProtagonist]]: In ''The Last Story''.
* RuleOfSymbolism: Agito's world has cross-shaped energy blasts and an Unknown that looks suspiciously like a nun. [[Series/KamenRiderAgito Agito's original series]] had lots of symbolism itself, so it's appropriate.
* RuleOfThree: The Diendriver can only summon up to 3 Kamen Riders at once.
** Also, the Riotrooper Kamen Ride Card summons 3 of them. Though, for some reason, during the events of ''Episode Yellow'' of the Cho Den-O Trilogy, the card summoned 5 Riotroopers.
* RunningGag: Sea cucumber, first mentioned by Kaito in his first appearance as Tsukasa's least favorite food. It pops up randomly a few times later on; in Amazon's World, the Dai-Shocker scientists consider making Masahiko a Sea Cucumber Kaijin, and Yuki (the A.R. version of Mio from ''Kiva'') is the Sea Cucumber Fangire.
** Momotaros, whenever he appears, always suffering neck pains one way or the other. Not just when his [=FFR=] activates, either.
* SailorEarth: Kamen Rider Abyss can be considered a professionally written example, twice over! Not only does he tap the wild shark-monsters Abysshammer and Abyssslasher of ''Ryuki'' for his contract monsters, but [[spoiler:he himself is the King of Hearts Undead left unseen in ''Series/KamenRiderBlade''.]]
** Hibiki's World receives a variation on this by taking an existing character (Akira) and giving her Oni/Rider powers.
* {{Salaryman}}: Tsukasa calls the Riders in Blade's world "Kamen Rider Salaryman", and for good reason.
** ...then becomes one in Diend's world.
* ScaledUp: An odd heroic example. Ryuki's Final Form Ride turns him (unwillingly) into a leaner version of his own Contract Monster, Dragredder.
** And as a villainous example, Fourteen becomes "Jashin 14" from the ''Series/KamenRiderBlade'' movie ''Missing Ace''.
** Likewise Garagaranda and Ikadevil from ''All Riders.''
* SchrodingersCast: Blade's story arc involves Garren and Leangle being drained of energy by the BigBad in order to create the Joker card. When the pair shows up in the final two episodes, they only appear in-suit and Kazuma refers to them only by Rider names, leaving fans to wonder whether the originals survived or Kazuma recruited new Riders between the two story arcs.
* ScrewDestiny: In the Rider War, Riders are forced to fight one another for the sake of their worlds' survival; Tsukasa tries to convince them to put aside the battle and fight the real enemy, Dai Shocker.
* SetRightWhatOnceWentWrong: [[spoiler:Like all things in ''Ryuki'', the answer to the problem at hand is screwing around with time.]]
* SeriousBusiness: In the new ''Ryuki'' world, court cases (which are pretty serious already) are decided with Kamen Rider battles and not, it would seem, evidence.
* SharingABody: [[Series/KamenRiderDenO Den-O]] World sees Tsukasa, Yusuke ''and'' Natsumi being bodyjacked by the Taros', which, for Den-O, is quite common. The fun part comes from the goofy outfits that they gain from these new forms, such as Ura-Tsukasa's spiffy white and blue suit.
** Ryu-Natsumi's needs to be [[http://img10.imageshack.us/img10/549/dcd149e.jpg seen]] to be believed, [[http://img.photobucket.com/albums/v283/factorialinfinity/uranatsumi.jpg Ura-Natsumi]] was just straight up {{Fanservice}}. Though it rapidly becomes FanDisservice as soon as you hear her speak with Ura's voice.
** And not to mention having another girl henshin; now ''that'' is {{Fanservice}}. Too bad they never answer the question of what happens if Natsumi gets bodyjacked by Deneb: would she be a {{Meido}} or a butler?
*** [[spoiler:In the second movie, Natsumi becomes her own Rider, Kamen Rider Kivara.]]
**** And speaking of Maids, she dons a costume like that in Blade's world.
* ShipTease: There was plenty of Tsukasa/Natsumi going around, especially when he has even his own pet name for her. Highlighted in episodes 26 and 27 when [[spoiler:Natsumi takes a fatal hit meant for Tsukasa and nearly dies, which he takes hardly]]. Also, after [[spoiler:Tsukasa decides to leave Dai-Shocker, Natsumi offers him a place in her home]].
* ShoutOut: The ''All Riders Super Spinoff'' videos include several, such as Rider Fashion Check hosts Narutaki and Creator/KenichiSuzumura comparing [[Series/KamenRiderDouble Double]] to [[MazingerZ Baron Ashura]] and {{Kikaider}}.
** In Hibiki's world, Tsukasa is wearing a pink kimono, just like [[StreetFighter Dan Hibiki]]
* ShoutOutThemeNaming: The new surnames of nearly all the SuspiciouslySimilarSubstitute Riders are references to either something from the show they came from or something about Kamen Rider in general:
** Yusuke Onodera ([[Series/KamenRiderKuuga Kuuga]]): ShotaroIshinomori's birth name was Shotaro ''Onodera''.
** Shinji Tatsumi ([[Series/KamenRiderRyuki Ryuki]]): "Tatsu" means "dragon", as in Shinji's contract monster.
** Ren Haguro ([[Series/KamenRiderRyuki Knight]]): "Haguro" means "black wings"; his contract monster is a bat named Darkwing.
** Kazuma Kendate ([[Series/KamenRiderBlade Blade]]): "Ken" means "blade". Of course, this pun was present in the original version, but here, the kanji for "date" is also used in the Japanese word for "to rouse". So he's the blade rouser.
** Sakuya Hishigata ([[Series/KamenRiderBlade Garren]]): "Hishigata" means "diamond shape".
** Mutsuki Kuroba ([[Series/KamenRiderBlade Leangle]]): "Kuroba" is one long vowel away from how the Japanese pronounce "clover".
** Hajime Shijo ([[Series/KamenRiderBlade Chalice]]): "Shijo" means "fourth article", referring to Hajime being the fourth Kamen Rider in his world.
** Takumi Ogami ([[Series/KamenRiderFaiz Faiz]]): "Ogami" sounds very similar to "ookami", meaning "wolf" (but with different kanji). Not just a reference to [[spoiler:him being the Wolf Orphnoch]], but a pun on the original version's surname, "Inui", the first two syllables of which would be the Japanese word for "dog" if it was written with different kanji.
** Shoichi Ashikawa ([[Series/KamenRiderAgito Agito]]): "Ashikawa" is a combination of "Ashihara" and "Hikawa", the surnames of Gills and G3 in the original version. [[spoiler:In ''Decade'', Shouichi is a CompositeCharacter of the three ''Agito'' Riders, so it fits.]]
** Nobuhiko Tsukikage ([[Series/KamenRiderBlack Shadow Moon]]): "Tsukikage" means "Moon Shadow".
* ShowWithinAShow: In the oden restaurant in the first ''Kabuto'' episode, a scene from ''Chou Den-O'' [[spoiler:the part when the five Imagins combine into Super Climax Form]] can be seen playing on the TV in the background before the news interruption.
* SlobsVersusSnobs: The Zanki (string) and Ibuki (wind) factions of Ongeki-Ryu in Hibiki World.
* SlouchOfVillainy: [[spoiler:Tsukasa and, later,]] Shadow Moon.
* SmugSnake: Apparently it doesn't matter what dimension, AU or parallel existence you're in: Evil!Mutsuki (from ''Blade'') will always be a {{Jerkass}}.
** [[spoiler:As it turns out, though, he and Sakuya were only [[JerkassFacade pretending to be jerks]] to Kazuma in order to help teach him humility.]]
** So will [[Series/KamenRiderFaiz Kusaka]].
* SomethingAboutARose: A RunningGag in the spinoff videos about Tsukasa wielding a rose.
* SortingAlgorithmOfEvil: [[spoiler:In Agito's world, the [[Series/KamenRiderKuuga Grongi]] get rather violently upended by the Unknown.]]
* SpellMyNameWithAnS: Decade's SuperPoweredEvilSide, which is variously called "Fury Form" (by fans) and "Violent Emotion" (by magazines and the S.H. Figuarts toy line). Both are acceptable translations for the Japanese name, Gekijoutai (激情態), though "Fury Form" is slightly more accurate.
* SpitTake: Tsukasa's reaction when Mayu says she actually likes his messed-up photos.
* SpookyPhotographs: Tsukasa's messed-up photos are an interesting variant - while indicating that Tsukasa is always out of sync with any world he does not belong to (and it doesn't matter ''which'' camera he uses), they sometimes capture significant details like [[spoiler:stuck-in-Clock Up Kabuto always watching over his family]], or Den-Liner Owner's ability to [[CrazyAwesome photobomb any photo taken in his train. Multiple times. Simultaneously. Even ones of himself. Regardless of the laws of physics.]]
* SpotlightStealingSquad: An in-universe example, Decade himself does this to the other Riders.
** Which is then turned onto its head when they enter Den-O's world, where, not even a minute after the episode begins, Tsukasa finds himself jacked by Momotaros.
* StealthHiBye: Diend.
* StealthPun: In ''All Riders'', when Double appears to save Kuuga and Decade, which side of Double is Shadow Moon facing? '''BLACK'''.
** Decade's movie-exclusive Fury Form from ''The Last Chapter''; in Japanese, "fury" and "movie" are homophones [[note]]''gekijou'', though they're written with entirely different kanji[[/note]], which means it could also be thought of as "Decade Movie Form".
* StepfordSmiler: Subverted. [[spoiler:Junichi Kaito/Kamen Rider Glaive uses this facade until Fourteen is eliminated.]]
* StoryBreakerTeamUp: The ''Shinkenger'' crossover, of sorts. Since nearly all Riders don't battle giant monsters on a weekly basis: bye bye, ''Franchise/SuperSentai'' {{humongous mecha}}s and MakeMyMonsterGrow.
* SuicideByCop: [[spoiler:In ''The Last Story'', Tsukasa allows Natsumi to kill him to end his rampage.]]
* SuperMode: Decade's Complete Form. Contrary to Decade's usual shtick, this gives him the ability to create copies of his nine predecessors' Super Modes (much like [[Manga/JoJosBizarreAdventure Stands]]) so that he can use their ultimate attacks. In ''The Last Story'', when the actual nine Riders are around, it can also transform them into their super modes (in order when that occurs: [[Series/KamenRiderKabuto Hyper Kabuto]], [[Series/KamenRiderAgito Agito Shining]], [[Series/KamenRiderFaiz Faiz Blaster]], [[Series/KamenRiderHibiki Armed Hibiki]], [[Series/KamenRiderRyuki Ryuki Survive]], [[Series/KamenRiderBlade Blade King]], [[Series/KamenRiderKuuga Rising Ultimate Kuuga]], [[Series/KamenRiderKiva Kiva Emperor]], and [[Series/KamenRiderDenO Den-O Super Climax]]).
** Of note is that in the TV series, Den-O Liner Form is used instead of Super Climax Form. The toy version of the K-Touch has Kuuga Ultimate rather than Rising Ultimate as well.
*** If you haven't noticed from the last enumeration, two previous Riders gain new Super Modes thanks to ''Decade'': Rising Ultimate Form for Kuuga and Super Climax Form for Den-O.
** Diend gains his own Complete Form in the Super Den-O Trilogy, which draws its power not from protagonist Riders, but movie-exclusive Riders: [[Series/KamenRiderAgito G4]], [[Series/KamenRiderRyuki Ryuga]], [[Series/KamenRiderFaiz Orga]], [[Series/KamenRiderBlade Glaive]], [[Series/KamenRiderHibiki Kabuki]], [[Series/KamenRiderKabuto Caucasus]], [[Series/KamenRiderKiva Arc]], and [[Series/KamenRiderDouble Skull]]. The only ones not to be bad guys are Skull ([[spoiler: though he's impersonated by a bad guy in Movie Wars 2010.]] Double's ''true'' Movie Dark Rider is Eternal, but of course that movie wasn't out yet.) and Orga (between this and Orga being in the World of Negatives it's clear ThePowersThatBe consider him Faiz's Movie Dark Rider, but he was just [[spoiler: Kiba who'd been deceived]]. It ''should'' have been Psyga.)
* SuperpoweredEvilSide: Rising Ultimate Kuuga ([[BrainwashedAndCrazy initially]]) in ''All Riders'', Decade [[SpellMyNameWithAnS Gekijoutai/Fury Form/Passionate Version/Violent Emotion]] in ''The Last Story''.
* SuperpowerMeltdown: Hibiki seems to be suffering from this.
* SwissArmyWeapon: Decade's Ride Booker not only holds all of his cards, but it can also change into a sword or gun weapon.
* TakeThat: [[EpilepticTrees One wonders]] if Kuuga's characterization in this series is a jab against its original actor.
* TakingTheBullet: Yuusuke has a habit of doing this for Tsukasa; [[spoiler:in ''All Riders vs. Dai-Shocker'' it gets him eliminated from the tournament; in the last episode, it gets him ''killed''.]]
** Yusuke lampshades it in a joint WorldOfCardboardSpeech with Decade in ''Agito'' world, signifying his [[DayInTheLimelight role in that arc]].
* TeleportSpam: Tsukasa pulls this off by PowerCopying Ryuki and using the Mirror World as his personal PortalNetwork (ep. 9).
* ThemeMusicPowerUp: Both ''Ride the Wind'' (commonly when the Final Form Rides make their first appearance) and ''Treasure Sniper''.
* ThereCanBeOnlyOne: The Rider War's World works like this; as the worlds merge, the Riders are forced to fight one another to determine whose world survives and whose dies. When Tsukasa arrives it's [[Series/KamenRiderBlade Blade]] vs. [[Series/KamenRiderKiva Kiva]], with [[Series/KamenRiderHibiki Hibiki]] showing up later.
** The Rider War in Ryuki's world also counts for this (Although it's Ryuki, so of course it will contain this trope), before Decade messes things up. Of course, it's completely different than the Ryuki series: less "''Series/{{Highlander}}'' with more spandex" and more ''Rider lawyers fighting and the winner's vote of guilty or not guilty being taken.''
* ThereIsNoKillLikeOverkill: [[spoiler:How can we possibly justify 25 Rider Kicks against [[KickThemWhileTheyAreDown an already beat-down]] [[Series/KamenRiderBlack Shadow Moon]] [[KickThemWhileTheyAreDown who was handed his ass]] by Series/KamenRiderDouble? RuleOfCool, that's how!]]
** Similarly, Diend Complete's [[http://www.youtube.com/watch?v=R52lV_vSJvg Gekijyouban]] Final Attack Ride.
* TheThemeParkVersion: Most of the AU worlds visited are a very stripped down version of the original shows they were meant to represent. This also includes the characterization of some of the Riders as well.
** In Series/KamenRiderKuuga, the Grongi planned to (aside from killing people that is) [[spoiler:shape mankind to become as violent and bloodthirsty as they are, and ultimately turning them all into monsters like them]]. In Decade, [[ViralTransformation this was taken]] ''[[WasOnceAMan very literally.]]''
** In Series/KamenRiderKiva, Wataru soon desires a world where [[spoiler: Fangire and humans live in harmony]]. Kiva's World grants exactly that.
** In Series/KamenRiderRyuki, Riders fight to the death for a single wish, [[spoiler:which is a huge lie, as the Big Bad planned to take that for himself]]. Ryuki's World instead have them fight for the verdict of the accused.
** In Series/KamenRiderAgito, There were subtle hints that it took place in the same world as Kuuga's. In Decade, they flat out state that it's a variation of Kuuga's World, complete with Grongi as well.
** The World of Faiz has the same situation with the Orphenochs as the ''Series/KamenRiderFaiz'', but moves it to a HighSchoolAU.
** The World of Kabuto fuses Hiyori and Jyuka and compresses her storyline into two episodes, in a world very much like the original series (and in a story that uses the fact that [[spoiler: we don't know what alternate Tendou looks like at first]] to ''tremendous'' effect. This is perhaps the only time the series uses the "AR world" thing well instead if it simply being a means of avoiding having to round up the original actors.
** Getting an original actor didn't stop them from going into this either, in the ''KamenRiderBlackRX'' arc. For some reason ''KamenRiderBlack'' is depicted as DarkerAndEdgier, with Minami Kotaro in a black jacket (he only ever had grey and white jackets in the original series) and our first look at the environment taking place at nighttime (which ''Black'' hardly had an excessive amount of).
* TheyWalkAmongUs: In the world of Kiva [[spoiler: we have the world the original Wataru wanted: humans and Fangire living in peace. Of course, not all Fangire want to go along with that, still.]]
* ThirdPersonPerson: Amazon.
* ThisLoserIsYou: Lampshaded in ep. 23 when Tsukasa points out to Daiki's face that he's been collecting treasures only to fulfill his own empty quest for self-worth. In a MerchandiseDriven show.
** Although Daiki himself shoved it back in his face by saying that he simply enjoys collecting treasures and continued doing it even after solving his own inner conflict, which averted this trope.
* TomatoInTheMirror: [[spoiler:It is revealed in the movie that Decade is the leader of Great Shocker prior to the beginning of the show, but before he could begin his grand plan of conquest, he suffered from amnesia and then became a hero. Though he had no qualms about resuming his leadership and betraying his friends. At first.]]
* TookALevelInBadass: Natsumi in ''The Last Story'', courtsey of Kivara.
* TransformationTrauma: [[spoiler:AU Shoichi seems to be suffering from this as Exceed Gills.]]
* TriggerPhrase: In ''The Last Story'', [[spoiler:Narutaki makes Natsumi's grandfather revert into Doctor Shinigami by serving him a squid and beer, causing him to utter "ika de beer", the same words said by Shinigami in ''All Riders'' right before transforming into Ikadevil.]]
** Well, that and, you know, [[spoiler:the Doctor Shinigami Gaia Memory that Eijiro was forced to use.]]
* {{Troll}}: Kaito is an interesting mild use of this trope, in that everytime he's onscreen with Tsukasa, he takes the opportunity to mess with him and try to ruin his plans, complete with a grin on his face. As the show continues, he eventually becomes a bit more friendly, [[spoiler:but then in the finale, after tearful confessions of camaraderie, goes right back to trolling when he suddenly shoots Tsukasa in the face.]]
** Perhaps the ultimate expression of Kaitou's trolling can be seen in the [[Series/KamenRiderDenO Den-O]] and Decade movie, where he only appears to make things more difficult for the heroes, with absolutely nothing to gain from it, all with a smile on his face.
*** [[WildMassGuessing Maybe it's because Diend didn't exactly get what he wanted in Den-O world, and just went for simple revenge?]]
** Not to mention Narutaki, who spends the entire series blaming Decade for things, and pretty much nothing else.
*** Until ''The Last Story'', [[spoiler:where he shows his TrueColors and becomes [[Series/KamenRider Colonel Zol]].]]
**** Only for that to be revealed to be just another disguise a few minutes later. In the end, all we know about him is that he thinks "it" (we don't even know what "it" is; like with his identity, there were more than one thing it ''could'' have been only for us to learn he's not talking about that.) is all Decade's fault.
* UmpteenthCustomer: Tsukasa ends up getting a choice of wife, a modeling job, a gig as a manager, and more simply for being an umpteenth customer. [[spoiler:Turns out it was all a plot to make him love the world and stay.]]
* UndeadTaxExemption: Tsukasa gets a new identity and new gear in every world he goes to the instant he arrives.
** In Kuuga's, he became a police officer.
** In Kiva's, he's a violinist.
** In Ryuki's, he's a lawyer.
** In Blade's, a chef.
** In Faiz's, a high school student.
** In Agito's, a postman.
** In Den-O's, he's a watch seller, and looks exactly like Mysterious Pocketwatch Guy from the original series.
** In Kabuto's, he's a [=ZECTrooper=].
** In Hibiki's, he's a martial artist. His pink Kimono may be a refference to Street Fighter's Dan Hibiki, who shares his name with this universe's hero.
** It wasn't instant, but in the Nega World, he became a millionaire for being the 10,000th customer at a restaurant, then he became a model just by walking down the street. [[/note]]Although, in this case, it's a ploy by the Dark Riders for Tsukasa to ''stay'' in that world.[[/note]]
** In Diend's, he's a {{Salaryman}}.
** In Shinkenger's, he's a Kuroko.
** In Black RX's, he is mistaken for Joe the Haze (The genuine Joe, unseen in ''Decade'', is mentioned as being stranded in the parallel world of Black).
** In Amazon's, he's a baseball player.
** In Rider War World, he's dressed in a tuxedo for a funeral.
* TheUnfought: [[spoiler:Even after becoming an executive of Super Shocker, Narutaki remains on the sidelines, ordering his soldiers around instead of fighting by himself.]]
* VillainProtagonist: [[AlternativeCharacterInterpretation Possibly Tsukasa himself.]]
* WakeUpGoToSchoolSaveTheWorld: Faiz gets hit hard by this one.
* [[WalkingTheEarth Walking]] TheMultiverse: [[spoiler:The end of ''The Last Story''.]]
* WhamShot: A meta example. When pictures of the Kiva Arrow were shown, people had no idea how it would come to be. Come the climax of Kuuga's arc and Tsukasa uses the Final Form Ride on him. The shot of Kuuga's head bending backwards into the shell of his new form [[NightmareFuel scarily]] [[EstablishingSeriesMoment established how the Kiva Arrow and other assorted Final Form Rides would go]].
* WhatHappenedToTheMouse: [[spoiler:In Blade's world, Sakuya and Mutsuki have their life energy drained by the villains in order to produce the Joker card. However, after that they're just sort of forgotten about - it's never said if they lived or died. Not helping matters is the Rider War World, where Kazuma refers to Garren and Leangle by Rider name only. This seems to point to the idea that they did in fact die, but again, nothing definite was said.]]
** The end of the Faiz arc shows several belts lying in rubble after the fight between Decade and Lucky Clover. Kaitou makes off with the Orga Driver, but that means that the Delta, Psyga, and Riotrooper belts are just lying there out in the open for anyone to take...
** Narutaki in both movies. [[spoiler:Ultimately a KarmaHoudini in the latter.]]
** [[spoiler:Eijiro Hikari being Dr. Shinigami.]] Natsumi and Yusuke saw him transform ''right in front of them'', and Tsukasa [[spoiler:as the Great Leader]] should have known this beforehand, but...[[spoiler: none of them batted an eye when he returned to the Hikari studio?]]
* WhatMeasureIsANonHuman: Early in the Kiva world, Tsukasa kills a Fangire who appeared to be attacking a human. It turns out that the woman who was being attacked was actually a Fangire who had been killing humans, and Tsukasa had inadvertently killed a good guy trying to stop her. No-one spends more than two seconds reflecting on Tsukasa's mistake since hey, it was just a Fangire.
** Of course, in the previous episode, [[spoiler:a few zillion people were turned into Grongi, and once the fight with the baddie who caused it was over, all those new Grongi ''vanished''. In the ''next'' episode, the Arms Monsters were absorbed by the bad guy, and didn't return when he got Rider Kicked into oblivion.]] Nobody seemed to notice or care in either case.
*** What's worse is that not only were each of the Arms Monsters respective Fangire species now extinct, Kiva has lost a HUGE chunk of power with them dead. Most of his forms required their assistance to use.
** This topic is tackled with a bit more substance in the Faiz world, which is to be expected since it was a major plot focus in [[Series/KamenRiderFaiz the original series]] as well.
** Kabuto world also spends a little bit of time on it when [[spoiler: this world's sister-of-AU-Tendo-Souji is revealed to be a Worm ''(and it's the same suit that Hiyori-Worm was in the Kabuto series too. Nice touch)''. Souji, in one of his rare moments of onscreen time, says that he doesn't care if she's a Worm or not - she's still his sister. The mythical Grandma feels the same way, as well.]]
** It gets a little nod in Den-O's world when Kaito refers to Momotaros as "just an Imagin" and Tsukasa's requisite WorldOfCardboardSpeech has him defending Momo as a kind-hearted person, no matter what he looks like.
* WhatTheHellHero: Tsukasa gets called to the carpet by [[spoiler:the Heisei Kamen Riders for not only failing to stop the destruction of the worlds, but actually speeding it up.]] Of course, the accusation loses its sting when you consider the MoralDissonance involved on the part of the accusers. (see above).
** A more humorous example is Den-O trying to chew out, on two separate occasions, Decade and Diend on activating his [=FFR=].
* WhoAreYou: Happens frequently; the correct answer is, "Just a passing Kamen Rider. Remember that!"
* TheWorfBarrage: In ''Movie Wars'', [[spoiler:the Final Form Rides (and [[Series/KamenRiderKiva Castle Doran]] and the [[Series/KamenRiderDenO DenLiner]]) were outmatched by the Super Crisis Fortress, just so it would be up to Double to take it down himself.]]
** To be fair, we don't actually see [[spoiler: the other Riders lose,]] they just...suddenly cease to be animated. And [[spoiler: Double did have a nifty robot elephant with a chainsaw trunk that he had to shove down it's throat.]]
* TheWorfEffect: Every World has this, primarily inverted. Some of the world's strongest enemies are taken down by Decade to showcase his power.
** The Buffalo Grongi, Go-Baberu-Da, who was one of the first Grongi to really beat the original Kuuga to an ''[[NoHoldsBarredBeatdown absolute pulp]]'', is dispatched with ease by Decade in the second episode.
** Rook, one of the more powerful Fangire in ''Kiva'' (and one of ''dozens'' to survive another 22 years after being "defeated"), is taken down in a few slashes by Decade - not even a FinishingMove or otherwise ''special'' slashes. Bishop, who was the BigBad in ''Kiva'', was taken down by an even bigger slash, which ''was'' a FinishingMove.
** Blade's world has Decade destroying Undead left and right, something which was thought to be ''physically impossible'' in their original series.
*** Although, it's justified. It's one of the abilities Tsukasa picked up, like speaking Grongi or playing the violin, when he travels to a new world.
** Diend is also guilty of this. Witness the moment when he [[CurbStompBattle completely overwhelms]] Kamen Rider Ryuga in battle.
** In the original ''Agito'', the Ant Queen Lord overpowered Gills and was taken down by Agito's Shining Form. In Decade's Agito, she gets taken down by Agito's Ground Form.
*** To be fair, Agito tried to Rider Kick the BigBad of his world and she [[DivingSave got in the way.]]
** In the Den-O world, the Mole Imagin, one of the more powerful Imagins in ''Den-O'', who happen to be the first victims of Liner Form, are pretty much cannon fodder for the bad guys.
*** Although this was not the first time they have been demoted to {{mook}}.
** The ''Kabuto'' series was less notable of Riders worfing high level Kaijin and instead having the Subst Worm (required Hyper Form originally) taken out by Tendou's sister merely [[spoiler:transforming into Sisworm]]; for the Geophilid Worm, Gattack was unable to take out the Worm like he did in the original series and instead Kuuga Pegasus Form took out them out, while Coleoptera was dispatched by [=TheBee=].
** The Summer Type Makamo gets these. In ''Hibiki'', Taikos were the best way to defeat them since the other weapons would barely flinch them. That does not stop Ibuki, Decade, and Zanki from defeating them.
** Subverted in Diend World as Lance and l'Arc have no more problem with fighting Dark Roaches than they did in the ''Blade'' Movie (but Decade shows up to curbstomp them anyway). Then gets played straight as [[spoiler:Decade Complete Form summons Armed Hibiki and takes out [[OneWingedAngel Jashin 14]] in a SingleStrokeBattle.]]
*** FridgeBrilliance: [[spoiler: Jashin 14]] Beating up the Riders in their normal forms, seeming unstoppable, and then getting [[spoiler: curbstomped by a SuperMode]] is exactly how it went in ''Missing Ace, too.''
** It took the Shinkenger world for this trope to get played straight for once. Watch as an Ayakashi makes short work out of Diend and [=ShinkenGold=] [[spoiler:by '''[[{{Irony}} stealing the Diendriver during battle]]!''' (and receiving a PowerCreepPowerSeep from it, turning him into the world's big bad for Tsukasa.)]]
** Amazon had given the Porcupine Grongi another brutal cutdown. In ''Kuuga'', it took Yusuke's [[UnstoppableRage full killing intent]] to slay the Grongi.
*** On the other hand, in the same world, the Ten-Faced Demon demonstrates his DittoFighter status by worfing Kuuga and Faiz!Decade with their own moves. The ''original'' version didn't put up that much of a fight against Amazon by his lonesome!
** Probably the largest example of this comes in the penultimate episode where the Warthog Fangire, whom is one of the more powerful Fangires, is taken down by a single, rather off-handed kick by Decade.
** In the final episode, Tsukasa gets hit with it twice: once against Super Apollo Geist (who also manhandles Kuuga, Hibiki, and Kiva at the same time), and then ''immediately'' afterwards by [[spoiler:Kazuma Kenzaki, the '''original''' Blade in King Form.]] In all fairness to Decade, he couldn't do much against the second foe because Apollo arleady exhausted him right before.
** All Riders has various examples of this trope if one considers the identities of the various minor Dai-Shocker members.
*** Rider 1 defeats Ganikomoru, a Crab/Bat monster that originally could match Rider 1, with two punches.
*** Skyrider defeats the Queen Ant Lord from Agito, who originally only was defeated by Agito's ultimate form, with two attacks too. Although, to be fair, Skyrider's own "base" form is an ultimate form of sorts. However, in a later scene, Agito goes on to beat up the same Queen Ant Lord in his base form too.
*** Kabuto single handily beat an Orphenoch, a mole Imagin, a Ganikomoru and a Shiomaneking (who originally needed to be defeated by Rider 1 and 2 fighting together) without even using Clock Up.
*** Decade throws the Arch Orphenoch, Faiz's final enemy who originally matched 3 Riders at once, one with a SuperMode, to the ground with a single sword slash. He does the same to the Bat Fangire, Kiva's final enemy.
*** [[spoiler:Shadow Moon, easily the BigBad of ''Series/KamenRiderBlack'']], gets this both straight and inverted in ''All Riders Vs. Dai-Shocker''. [[spoiler:No one's questioning his power, but he was beating Decade and Rising Ultimate Kuuga, two Riders each with the potential to ''destroy the planet'', at the same time without breaking a sweat. And then he was inexplicably whomped by ''Series/KamenRiderDouble'' (who seems to be "suffering" from a major case of Advertising Power-Up) before receiving an epic Rider Kick from all other 26 Riders.]]
*** [[spoiler:Which was immediately followed by the rise of the giant King Dark, who effortlessly defeats the puny Riders by making a shitload of explosions and beats down ''Film/KamenRiderJ'' in two punches. Then Diend decided to [[MakeMyMonsterGrow Make His Decade Grow]] and behold, King Dark becomes a nuke by eating two punches and a Rider Kick.]]
** In ''Movie War 2010'', [[spoiler:[[Film/KamenRiderZO Doras]] manages to fight off the entire Hikari Studio Team - Decade, Diend, Kuuga, and Kivala - at the same time, and then can hold off all Heisei Riders in the normal forms for a while (though not beating up them as badly), only dying a RasputinianDeath from everyone in their {{Super Mode}}s.]]
*** Kuuga, in his basic Mighty form, easily beat up Hiruchamaleon, Gel-Shocker's chief commander, who originally was only defeated in a close battle with Rider 1 and 2.
** And we are not even getting on the issue of other Riders. Really, ''any'' past MonsterOfTheWeek should require more than a few punches, each having kept its Rider(s) busy for a good portion of one episode.
* WorldOfCardboardSpeech: Pretty much every other episode, when Tsukasa finally figures out the situation of each world and starts kicking ass with the world's Rider.
** And, of course, each speech generally attempts to tie in with the moral that was important to each world's original Rider. Kuuga got 'protecting the smiles of all,' Kabuto got 'protecting those important to him, no matter what'...you get the idea. They're pretty well done.
*** Except in Hibiki's world, when Daiki stole Tsukasa's entire shtick, ending with "Before you came along, I was already a passing Kamen Rider!" Not a subversion though as the speech was still spot-on.
* WouldntHitAGirl: Diend summons Femme and pits her against Black, knowing that Black is a follower of this trope, which got him overwhelmed.
** Subverted when Tsukasa chooses to henshin and attack Ryuutaros (as Den-O Gun Form) possessing [[spoiler:Natsumi of all people.]]
* YankTheDogsChain: Kamen Rider Scissors, the eternal loser of ''Ryuki'', finally wins his first fight ''ever'' on screen when Ryuki World begins. Only to be defeated by Knight a few minutes later. [[spoiler:When all's said and done, his only victory was in a fight that never actually happened.]]
** Not true - that 5.6% win ratio had to come from somewhere.
** Most likely from defeating Femme.
* YouCantFightFate: [[spoiler:Tsukasa adopts this attitude at the end of the series following the WhatTheHellHero from the original Riders. This carries over into ''The Last Story'' where he's initially the BigBad, until it's revealed all that he did actually ''saved'' all the worlds and he sacrificed himself to do it.]]
* YouHaveFailedMe: The [[spoiler:original Riders]] pull this on [[spoiler:Tsukasa]] in the finale.
* YouHaveOutlivedYourUsefulness: ''The Last Story'' has [[spoiler:Wataru, and indirectly the other Heisei Riders]] say this posthumously about [[spoiler:Tsukasa, remarking that his job was to destroy the Riders to save every world, which were restored due to the memories of the battles of the Riders. However, Decade had no story and so he couldn't return.]]
* YourPrincessIsInAnotherCastle: The Hikari Studio ''thought'' it was all over when they seemingly returned to their home universe, newly-restored, in Ep. 19.
** Not to mention at the end of 31. [[spoiler: After they defeated Apollo Geist for good, Natsumi smiles, only to realize that the spot they're at is the very place where the Rider War took place.]]
* ZergRush: The first act of Dai-Shocker's army upon the entrance of all Riders in ''All Riders vs Dai Shocker'' is to pelt them with a barrage of rocket-propelled Shocker Mooks.
** Which turns into a ChekhovsGun of sorts. [[spoiler:Three words. ALL. RIDER. KICK.]]
* ZettaiRyouiki: Natsumi initially wears pants most of the time, but after a few episodes, she begins her personal quest for the golden ratio.
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