History YMMV / KamenRiderOOO

* HarsherInHindsight: Eiji would spend post-series finding a way to revive Ankh, then come [[Film/KamenRiderOOO10thCoreMedalOfResurrection the 10th anniversary film]], he succeeds [[spoilers:but at the cost of his own life.]]

** The PV for the OP [[https://www.youtube.com/watch?v=eYjFbRkPziU "Anything Goes"]] may have predicted key points of the finale. [[spoiler:Uva appears in it, and he's the last of the original Greeed to die. And the singer's name is ''[[NamesTheSame Maki]]'' Ohguro.]]

* FanonDiscontinuity: Pretty much no one likes the official spelling "Tajadol" and use "Tajador" instead.

* AngstWhatAngst: Eiji has no family, job, or ambitions, but he doesn't really attach any importance to those things so it doesn't bug him. [[spoiler:However, he's often haunted by memories of Ruu, a girl he'd befriended on his travels that [[ILetGwenStacyDie he was unable to save.]]]] The series later makes it clear that while he doesn't outwardly show it, the tragedy in Eiji's past has left him a man broken in spirit.

* BrokenBase: Probably the biggest argument in all of Toku (even surpassing the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate), there is a debate over if Tajadol or Putotyra is OOO's final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, in terms of debut order and sheer power level, Putotyra would fit said definition; but Tajadol is seen as the culmination of Eiji and Ankh's relationship and [[spoiler:it ended up being Eiji's most powerful weapon against the final boss]]. Super Tatoba would normally be ignored in such a discussion by being a post-series movie form, but it makes a few more appearances than most such forms and the ambiguity between Tajadol and Putotyra means it's given serious consideration as an alternative. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Both Zi-O and Decade get items that explicitly label Putotyra as "Final". Meanwhile, Zi-O's [=DecadeArmor=] mimics mid-stage forms and bases its OOO version on Tajadol. '''Memory of Heroez:''' Putotyra is used as OOO's "EX" final form. '''Core Medal of Resurrection''': Once again, Tajadol is the final upgrade used to defeat the BigBad, this time culminating in another upgrade called Tajadol Combo Eternity. Though Putotyra is used to defeat King OOO. '''All other appearances''' (''Super Hero Taisen'' and the ''Wizard'' and ''Gaim'' toylines) have both Tajadol and Putotyra given equal weight.[[/labelnote]] Just when the argument was starting to die down, the 10th anniversary film adds a new Tajadol Eternity form, which [[HereWeGoAgain at best adds fuel supporting Tajadol and at worst is ANOTHER "final" form in the debate]].

** We've had Dr. Maki leaving the Kougami company to form his own faction with the younger-looking Kazari and [[spoiler:Lost Ankh]] in the form of a small boy, not long after the fate of ''a certain other'' Series/TwoAndAHalfMen was in question.
*** And the final fight is [[spoiler:Eiji with Ankh reduced to Core Medals vs. Maki,]] essentially Two And Bits of a Man.

** One of those "weird Japanese inventions" often circulated on the 'net involves a device women can use to outwit stalkers, a handbag that unfolds into a vending machine disguise. Which is exactly what the [=RideVender=] does.
*** You know who else was famously disguised as a vending machine? [[{{Film/Transformers}} Dispensor.]]
** The animals that Kazari's Core Medals are based on, [[color:goldenrod:Lion]], [[color:gold:Tiger]] and [[color:yellow:Cheetah]] appeared as Mecha in ''Series/JukenSentaiGekiranger''.
*** Ditto for Giru's Medals: Ptera, Tricera, and Tyranno for ''Series/BakuryuuSentaiAbaranger''

*** Remember how Dr Maki turned out to be a fan of Music/BobMarley? [[spoiler:And Tajadol form is literally made up of ''[[WaxingLyrical three little birds...]]'']]

** What was the first ever costume theme at the Cous Coussier? [[Series/KaizokuSentaiGokaiger Pirates.]]
*** Similarly, Hina asks Eiji what he always wanted to be in #35. His first choice? [[Series/KamenRiderFourze Astronaut.]]

* JerkassWoobie: In #29, when Kazari uses Maki to make a Yummy, it's revealed that his greatest desire is for [[spoiler:a hug]]. Though it's pretty much subverted when we find out [[spoiler:he's the one who killed his sister because she was getting married and wanted to abandon him. When he remembers this, he isn't just guiltless, he believes it was a justified thing to do.]]
** It's also no accident that the Yummy created from him [[spoiler:hugs women to death. It isn't a case of DoesNotKnowHisOwnStrength on the Yummy's part. It's his desire that if someone shows kindness and compassion, they should die before they can be corrupted by the world and taken from him like he felt his sister was.]]

** In Series/KamenRiderDouble, a representative of Foundation X discusses the possibility of the Core Medals. In Kamen Rider OOO, Foundation X is never mentioned.
*** However, they are now confirmed to appear in Movie Wars Megamax.

* TheWoobie: If you didn't feel sorry for Gamel while he was wandering around searching for Mezool like a lost puppy, you don't have a heart.

* BrokenBase: Probably the biggest argument in all of Toku (even surpassing the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate), there is a debate over if Tajadol or Putotyra is OOO's final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, in terms of debut order and sheer power level, Putotyra would fit said definition; but Tajadol is seen as the culmination of Eiji and Ankh's relationship and [[spoiler:it ended up being Eiji's most powerful weapon against the final boss]]. Super Tatoba would normally be ignored in such a discussion by being a post-series movie form, but it makes a few more appearances than most such forms and the ambiguity between Tajadol and Putotyra means it's given serious consideration as an alternative. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Both Zi-O and Decade get items that explicitly label Putotyra as "Final". Meanwhile, Zi-O's [=DecadeArmor=] mimics mid-stage forms and bases its OOO version on Tajadol. '''Memory of Heroez:''' Putotyra is used as OOO's "EX" final form. '''Core Medal of Resurrection''': Once again, Tajadol is the final upgrade used to defeat the BigBad, this time culminating in another upgrade called Tajadol Combo Eternity. '''All other appearances''' (''Super Hero Taisen'' and the ''Wizard'' and ''Gaim'' toylines) have both Tajadol and Putotyra given equal weight.[[/labelnote]] Just when the argument was starting to die down, the 10th anniversary film adds a new Tajadol Eternity form, which [[HereWeGoAgain at best adds fuel supporting Tajadol and at worst is ANOTHER "final" form in the debate]].

* BrokenBase: Probably the biggest argument in all of Toku (even surpassing the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate), there is a debate over if Tajadol or Putotyra is OOO's final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, in terms of debut order and sheer power level, Putotyra would fit said definition; but Tajadol is seen as the culmination of Eiji and Ankh's relationship and [[spoiler:it ended up being Eiji's most powerful weapon against the final boss]]. Super Tatoba would normally be ignored in such a discussion by being a post-series movie form, but it makes a few more appearances than most such forms and the ambiguity between Tajadol and Putotyra means it's given serious consideration as an alternative. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Both Zi-O and Decade get items that explicitly label Putotyra as "Final". Meanwhile, Zi-O's [=DecadeArmor=] mimics mid-stage forms and bases its OOO version on Tajadol. '''Memory of Heroez:''' Putotyra is used as OOO's "EX" final form. '''All other appearances''' (''Super Hero Taisen'' and the ''Wizard'' and ''Gaim'' toylines) have both Tajadol and Putotyra given equal weight.[[/labelnote]] Just when the argument was starting to die down, the 10th anniversary film adds a new Tajadol Eternity form, which [[HereWeGoAgain at best adds fuel supporting Tajadol and at worst is ANOTHER "final" form in the debate]].

* MoralEventHorizon: Kazari [[spoiler:using Gamel and Mezool in an experiment that could quite obviously be fatal and not caring one bit both were killed in the result. In fact, he ''smiles'' while he observes his handywork.]]

** The "Multi-King" form that the [[spoiler:Original OOO]], Kougami, and the Greeeds try to achieve. Considering how powerful individual combos are (and that [[spoiler:Greed!Maki]] got [[OneHitKill One-Hit Killed]] by just both Putotyra and Tajadol, respectively), it would've been interesting to see the level of power that form would give out.

* AngstWhatAngst: Eiji has no family, job, or ambitions, but he doesn't really attach any importance to those things so it doesn't bug him. [[spoiler:However, he's often haunted by memories of Ruu, a girl he'd befriended on his travels that [[ILetGwenStacyDie he was unable to save.]]]]

* JerkassWoobie: In #29, when Kazari uses Maki to make a Yummy, it's revealed that his greatest desire is for [[spoiler:a hug]]. Though its pretty much subverted when we find out [[spoiler:he's the one who killed his sister because she was getting married and wanted to abandon him. When he remembers this, he doesn't seem all that guilty about it.]]

* GameBreaker:
** Putotyra Combo due to its ability to destroy other Core Medals.
** Gatakiriba counts too, not only because of its duplication powers, but it can also split itself into 8, with each transforming into other different combos.

%%** "''[[Anime/DigimonTamers Giru?]]''"

** "''[[Anime/DigimonTamers Giru?]]''"

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if Tajadol or Putotyra is OOO's final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, in terms of debut order and sheer power level, Putotyra would fit said definition; but Tajadol is seen as the culmination of Eiji and Ankh's relationship and [[spoiler:it ended up being Eiji's most powerful weapon against the final boss]]. Super Tatoba would normally be ignored in such a discussion by being a post-series movie form, but it makes a few more appearances than most such forms and the ambiguity between Tajadol and Putotyra means it's given serious consideration as an alternative. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Both Zi-O and Decade get items that explicitly label Putotyra as "Final". Meanwhile, Zi-O's [=DecadeArmor=] mimics mid-stage forms and bases its OOO version on Tajadol. '''Memory of Heroez:''' Putotyra is used as OOO's "EX" final form. '''All other appearances''' (''Super Hero Taisen'' and the ''Wizard'' and ''Gaim'' toylines) have both Tajadol and Putotyra given equal weight.[[/labelnote]] Just when the argument was starting to die down, the 10th anniversary film adds a new Tajadol Eternity form, which [[HereWeGoAgain at best adds fuel supporting Tajadol and at worst is ANOTHER "final" form in the debate]].

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if Tajadol or Putotyra is OOO[='=]s final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, although in terms of debut order, Putotyra would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, Tajadol is seen as the culmination of Eiji and Ankh's relationship and [[spoiler:it ended up being Eiji's most powerful weapon against the final boss]]. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. A Putotyra appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. Putotyra also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Both Tajadol and Putotyra get Ridewatches in the toyline; while Tajadol actually shows up in the show (perhaps the only upgrade-form Ridewatch to do so), Putotyra is the one labeled "Final". Decade's updated power set, seen in a toy release and an enhanced SuperMode, also has Putotyra as OOO's Final Ride card. Meanwhile, Zi-O's [=DecadeArmor=] (which generally mimics mid-stage forms) bases its OOO version on Tajadol, reinforcing that it's ''not'' the final form. '''All other appearances''' (''Super Hero Taisen'' and the ''Wizard'' and ''Gaim'' toylines) have Tajadol and Putotyra alongside each other and treated equally, without Super Tatoba.[[/labelnote]] Just when the argument was starting to die down, [[HereWeGoAgain with the 10th anniversary film, we ended up getting ANOTHER "final" form for Eiji]] with an enhanced version of Tajadol.
** However, the argument becomes stupid when one realizes that there is a general formula for which upgrade is considered the Final Form that all series from Kuuga onward have generally adhered to. What determines the status of the form is not presentation in the show, but by the '''''TOYS'''''! The Final Form with capital F is generally the primary upgrade for the show's final quarter, and is a trinket that interfaces with the belt. Thus, the form makes its debut in the between Episode 30 and 41, with the only exceptions to this last detail being ''Kuuga'', ''Hibiki'', ''Kiva'', and ''Decade''[[note]]Due to the nature of the form, Ultimate Kuuga only properly appears in the second-to-last episode, and the formula had yet to be established. Next, the Armed Saber doesn't interact with the Henshin Onsa, but that's acceptable given the sheer unorthodox nature of the show to begin with. For ''Kiva'', the need to debut Emperor Form was a top priority so Seiji Takaiwa would have to wear the Kiva Form-based suits less, given how they were crushing him due to their undersized state. Lastly, while Decade Complete debuted in episode 21, his show was even shorter than most, so semantics aside, Complete debuts when it should.[[/note]]. For ''OOO'', this firmly places Putotyra as the proper Final Form, while Tajador, debuting in the third quarter of the show, is merely the penultimate form, albeit an extremely important one, compared to most other penultimate forms like Amazing Mighty Kuuga, Grateful Damashii, Kachidoki Arms, and so on. As they are forms that debut ''after'' the show, Super Tatoba and the upcoming Tajador variant are merely Extra Final Forms, but not the main marketed one. It's questionable to rely on media presentation as these, and many, many other aspects of Rider lore, are often subject to the sheer FlipFlopOfGod that Toei exhibits, so the toys are the only reliable marker in categorizing the Final Form.

** However, the argument becomes stupid when one realizes that there is a general formula for which upgrade is considered the Final Form that all series from Kuuga onward have generally adhered to. What determines the status of the form is not presentation in the show, but by the '''''TOYS'''''! The Final Form with capital F is generally the primary upgrade for the show's final quarter, and is a trinket that interfaces with the belt. Thus, the form makes its debut in the between Episode 30 and 41, with the only exceptions to this last detail being ''Kuuga'', ''Hibiki'', ''Kiva'', and ''Decade''[[note]]Due to the nature of the form, Ultimate Kuuga only properly appears in the second-to-last episode, and the formula had yet to be established. Next, the Armed Saber doesn't interact with the Henshin Onsa, but that's acceptable given the sheer unorthodox nature of the show to begin with. For ''Kiva'', the need to debut Emperor Form was a top priority so Seiji Takaiwa would have to wear the Kiva Form-based suits, given how they were crushing him due to their undersized state. Lastly, while Decade Complete debuted in episode 21, his show was even shorter than most, so semantics aside, Complete debuts when it should.[[/note]].

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if Tajadol or Putotyra is OOO[='=]s final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, although in terms of debut order, Putotyra would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, Tajadol is seen as the culmination of Eiji and Ankh[='=]s relationship and [[spoiler:it ended up being Eiji[='=]s most powerful weapon against the final boss]]. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. A Putotyra appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. Putotyra also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Decade's updated power set, seen in a toy release and an enhanced SuperMode, has Putotyra as OOO's Final Ride card. Meanwhile, Zi-O's [=DecadeArmor=] (which generally mimics mid-stage forms) bases its OOO version on Tajadol, reinforcing that it's ''not'' the final form. '''All other appearances''' (including ''Super Hero Taisen'' and the ''Wizard'', ''Gaim'', and ''Zi-O'' toylines) have Tajadol and Putotyra alongside each other and treated equally, without Super Tatoba.[[/labelnote]] It had recently started to die down, [[HereWeGoAgain but then with the new OOO film, we ended up getting MORE "final" forms for Eiji]].

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if Tajadol or Putotyra is OOO[='=]s final form; with Super Tatoba as a smaller third faction. The problem comes from the fact that, although in terms of debut order, Putotyra would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, Tajadol is seen as the culmination of Eiji and Ankh[='=]s relationship and [[spoiler:it ended up being Eiji[='=]s most powerful weapon against the final boss]]. Toei's official line is that Putotyra is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' Tajadol is used in the OOO segment, though it's a plot point that Putotyra had been destroyed and is unavailable. The crossover segment features the debut of Super Tatoba. '''Movie War Ultimatum:''' Super Tatoba is the form used, likely as a CallBack to ''Megamax''. A Putotyra appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super Tatoba appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. Putotyra also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] Putotyra as the final form. '''Heisei Generations FINAL:''' Tajadol is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Decade's updated power set, seen in a toy release and an enhanced SuperMode, has Putotyra as OOO's Final Ride card. Meanwhile, Zi-O's [=DecadeArmor=] (which generally mimics mid-stage forms) bases its OOO version on Tajadol, reinforcing that it's ''not'' the final form. '''All other appearances''' (including ''Super Hero Taisen'' and the ''Wizard'', ''Gaim'', and ''Zi-O'' toylines) have Tajadol and Putotyra alongside each other and treated equally, without Super Tatoba.[[/labelnote]]

* AngstWhatAngst: Eiji has no family, job, or ambitions, but he doesn't really attach any importance to those things so it doesn't bug him. [[spoiler: However, he's often haunted by memories of a girl he'd befriended on his travels that [[ILetGwenStacyDie he was unable to save.]]]]

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if [=TaJaDol=] or [=PuToTyra=] is OOO[='=]s final form; with Super [=TaToBa=] as a smaller third faction. The problem comes from the fact that, although in terms of debut order, [=PuToTyra=] would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, [=TaJaDol=] is seen as the culmination of Eiji and Ankh[='=]s relationship and [[spoiler:it ended up being Eiji[='=]s most powerful weapon against the final boss]]. Toei's official line is that [=PuToTyra=] is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' [=TaJaDor=] is used in the OOO segment, though it's a plot point that [=PuToTyra=] had been destroyed and is unavailable. The crossover segment features the debut of Super [=TaToBa=]. '''Movie War Ultimatum:''' Super [=TaToBa=] is the form used, likely as a CallBack to ''Megamax''. A [=PuToTyra=] appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super [=TaToBa=] appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. [=PuToTyra=] also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] [=PuToTyra=] as the final form. '''Heisei Generations FINAL:''' [=TaJaDor=] is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' Decade's updated power set, seen in a toy release and an enhanced SuperMode, has [=PuToTyra=] as OOO's Final Ride card. Meanwhile, Zi-O's [=DecadeArmor=] (which generally mimics mid-stage forms) bases its OOO version on [=TaJaDor=], reinforcing that it's ''not'' the final form. '''All other appearances''' (including ''Super Hero Taisen'' and the ''Wizard'', ''Gaim'', and ''Zi-O'' toylines) have [=TaJaDor=] and [=PuToTyra=] alongside each other and treated equally, without Super [=TaToBa=].[[/labelnote]]

* DracoInLeatherPants: The Greeeds: Uva, Kazari, Mezul, and Gamel. In spades. Also, Dr. Maki believe it or not for being utterly hilarious, especially if his doll's knocked off his shoulder.

* EpilepticTrees: Since the beginning, many people began creating theories about the OOO Driver being a DeadlyUpgrade, who the Original OOO was, and how it will affect Eiji, with a popular theory being that Eiji would turn into a Greeed. [[spoiler: Surprisingly, they're correct about the latter, but it's not the OOO Driver that's doing the conversion. That would be the purple Core Medals inside Eiji, which also chose him to inhabit due to his lack of desire rather than due to being OOO.]]

** [=PuToTyra=] Combo due to its ability to destroy other Core Medals.
** [=GataKiriBa=] counts too, not only because of its duplication powers, but it can also split itself into 8, with each transforming into other different combos.

** One of the Net Movies for Series/KamenRiderDecade involved Film/{{Shin Kamen Rider|Prologue}} and his ImagineSpot, wondering what it'd be like if his show took off. Episodes 21 and 22 provide a somewhat twisted picture.

*** And the final fight is [[spoiler:Eiji with Ankh reduced to Core medals vs. Maki,]] essentially Two And Bits of a Man.
** [=ShaUTa=] Combo's theme song title, "Shout Out", is bound to make many a troper chuckle.

** There was quite a bit of negative reaction over [=PuToTyra=], the purple form, being designated as the "Ultimate Form" over the already-impressive [=TaJaDor=] (which was touted as such in ''Movie Wars Core''). Fast forward to the finale, and [[spoiler:[=PuToTyra=] gets [[TheWorfEffect Worfed]] in favor of [=TaJaDor=] as Eiji and Ankh battle the BigBad [[FridgeBrilliance as one being]].]]
*** There are three possible reasons for this. One, [[spoiler:[=PuToTyra=] is the same "type" as Maki, so it probably wasn't as effective as against the desire-based Greeed]]. Two, [[spoiler:a true collaboration between Eiji and Ankh is what the series has been building up to]]. Three, [[spoiler: with [=PuToTyra=] out of the list, [=TaJaDor=] ''is'' the strongest form OOO has, as well as the ''only'' form available at the point]].
*** Looks like Toei decided to take the initiative here, by churning out '''[[CanonImmigrant Super TaToBa Form]]''' for ''Movie Wars Megamax''. It does reuse [=TaJaDor's=] head though.
*** Remember how Dr Maki turned out to be a fan of Music/BobMarley? [[spoiler:And [=TaJaDor=] form is literally made up of ''[[WaxingLyrical three little birds...]]'']]

* JerkassWoobie: In #29, when Kazari uses Maki to make a Yummy, it's revealed that his greatest desire is for [[spoiler: a hug]]. Though its pretty much subverted when we find out [[spoiler:he's the one who killed his sister because she was getting married and wanted to abandon him. When he remembers this, he doesn't seem all that guilty about it.]]
** It's also no accident that the Yummy created from him [[spoiler: hugs women to death. It isn't a case of DoesNotKnowHisOwnStrength on the Yummy's part. It's his desire that if someone shows kindness and compassion, they should die before they can be corrupted by the world and taken from him like he felt his sister was.]]

** If he didn't cross it by locking his assistants in a lab with rampaging Yummy ForScience, Dr. Maki crossed this when he realizes [[spoiler:he murdered his own sister and reacts, not with remorse, but by deciding he did the right thing by killing her and now it's time to destroy the world.]] It's more likely the latter, as before that point, he wasn't beyond redemption. It's this point that it becomes clear he's irredeemable. Made even worse by [[spoiler: the tensing of a HeelFaceTurn directly before it.]]

** And then there is [[LargeHam Kousei Kougami]] at episode 47 who overacted regarding about the purple core medals stuffs blocking the way. Though considering this is how Kougami [[ChewingTheScenery usually acts]], it becomes more NarmCharm.

* RetroactiveRecognition: Karin Ogino, Belle from ''Shogun and the 21 Core medals'', has not only gotten a leading role in ''Series/HikoninSentaiAkibaranger'', but a role in the upcoming ''Anime/TigerAndBunny'' [[LiveActionAdaptation stage show.]] Not bad for an AdvertisedExtra.

** It would have been cool to see Giga Scan combos with other core medals. (In the entire series, only Batta and the Red and Purple ones have been used)
** The "Multi-King" form that the [[spoiler:Original OOO]], Kougami, and the Greeeds try to achieve. Considering how powerful individual combos are (and that [[spoiler:Greed!Maki]] got [[OneHitKill One-Hit Killed]] by just both [=PuToTyra=] and [=TaJaDor=], respectively), it would've been interesting to see the level of power that form would give out.
* ViewerGenderConfusion: Gara has a female live actor and a male voice actor, so this becomes inevitable. Justified, as Gara [[spoiler:possesses a woman]].

** Gamel again in #45 [[spoiler: where he's utterly heartbroken by Mezool discarding him once she's fully restored, and eventually ends up with her [[DiedInYourArmsTonight dying in his arms]]]].
** And again with Gamel in the next episode [[spoiler: as he dies and tries to give Mezool's last Core Medal a lollipop and hallucinates Mezool accepting the sweet before collapsing into a pile of Medals himself]].

* AccidentalAesop:
** [[https://coherentcats.com/2019/02/27/taste-disability-and-metaphor-de-humanization-in-kamen-rider-ooo An article written by someone with anosmia]] highlights how the Greeed can be interpreted as people with various disabilities, who only desire "completeness" because they've internalized their lack of humanity, making [[spoiler:Ankh's wholly selfless sacrifice and death at the end]] cap off the aesop of not treating the handicapped any less like people just because they don't experience things the same way we do.

* MagnificentBastard:
** Kougami; crazy as he is, makes it abundantly clear that he's in control of the situation in #6, forcing Ankh to accept a crooked deal in order for him and Eiji to use the [=RideVendors=] located around the city.
** Ankh himself isn't too shabby either: In #20, it is revealed that he [[spoiler: switched the core medals with cell medals in the case beforehand so that Kazari's apparent victory by stealing it in #19 was foiled.]]
%%** Kazari shows signs of this as well. (ZCE)

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if [=TaJaDol=] or [=PuToTyra=] is OOO[='=]s final form; with Super [=TaToBa=] as a smaller third faction. The problem comes from the fact that, although in terms of debut order, [=PuToTyra=] would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, [=TaJaDol=] is seen as the culmination of Eiji and Ankh[='=]s relationship and [[spoiler:it ended up being Eiji[='=]s most powerful weapon against the final boss]]. Toei's official line is that [=PuToTyra=] is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' [=TaJaDor=] is used in the OOO segment, though it's a plot point that [=PuToTyra=] had been destroyed. The crossover segment features the debut of Super [=TaToBa=]. '''Movie War Ultimatum:''' Super [=TaToBa=] is the form used, likely as a CallBack to ''Megamax''. A [=PuToTyra=] appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super [=TaToBa=] appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. [=PuToTyra=] also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] [=PuToTyra=] as the final form. '''Heisei Generations FINAL:''' [=TaJaDor=] is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' A toy release for Decade's updated power set has [=PuToTyra=] as OOO's Final Ride card, which was reinforced when Tsukasa's updated final form included said card on the design with the other Final Ride cards. The OOO tribute episode also includes a [=TaJaDor=] Ridewatch where the watches of most alternate forms are toyline-exclusive, though this doesn't necessarily indicate its status as "final" or not. '''All other appearances''' (including ''Super Hero Taisen'' and the ''Wizard'', ''Gaim'', and ''Zi-O'' toylines) have [=TaJaDor=] and [=PuToTyra=] alongside each other and treated equally, without Super [=TaToBa=].[[/labelnote]]

* BrokenBase: Although not as big as the "Who is the secondary Rider of ''Series/KamenRiderBlade''?" debate, there is a debate over if [=TaJaDol=] or [=PuToTyra=] is OOO[='=]s final form; with Super [=TaToBa=] as a smaller third faction. The problem comes from the fact that, although in terms of debut order, [=PuToTyra=] would fit said definition, and story-wise it had a role similar to Blade King Form and [[Series/KamenRiderGaim Gaim]] Kiwami Arms, both of which are unquestionably seen as the final forms in their respective series; while on the other hand, [=TaJaDol=] is seen as the culmination of Eiji and Ankh[='=]s relationship and [[spoiler:it ended up being Eiji[='=]s most powerful weapon against the final boss]]. Toei's official line is that [=PuToTyra=] is the final form, but that hasn't stopped them from using the others instead when it suits them.[[labelnote:Evidence for each]]In release order: '''Movie War Megamax:''' [=TaJaDor=] is used in the OOO segment, though it's a plot point that [=PuToTyra=] had been destroyed. The crossover segment features the debut of Super [=TaToBa=]. '''Movie War Ultimatum:''' Super [=TaToBa=] is the form used, likely as a CallBack to ''Megamax''. A [=PuToTyra=] appearance is added in a Director's Cut. '''Series/KamenRiderWizard Episode 53:''' Super [=TaToBa=] appears with other Riders' final forms, though the group as a whole is inconsistent between using in-series and post-series forms. [=PuToTyra=] also makes an appearance within the episode. A '''2014 OOO photobook''' [[https://twitter.com/KiryuSenko1010/status/1013331869654368256 specifically names]] [=PuToTyra=] as the final form. '''Heisei Generations FINAL:''' [=TaJaDor=] is the choice this time, likely for emotional resonance with Ankh returning and granting the power. '''Series/KamenRiderZiO:''' A toy release for Decade's updated power set has [=PuToTyra=] as OOO's Final Ride card. The OOO tribute episode also includes a [=TaJaDor=] Ridewatch where the watches of most alternate forms are toyline-exclusive, though this doesn't necessarily indicate its status as "final" or not. '''All other appearances''' (including ''Super Hero Taisen'' and the ''Wizard'', ''Gaim'', and ''Zi-O'' toylines) have [=TaJaDor=] and [=PuToTyra=] alongside each other and treated equally, without Super [=TaToBa=].[[/labelnote]]

** Eiji and Ankh's confrontation in #46 is very heart-felt and serious, but all of that goes out the window when you suddenly realize that [[spoiler:[[http://tinypic.com/r/s6t2lv/7 Ankh's arm is being held together by scotch tape...]]]]

** The monsters being called "Yummies" can cause some laughter, especially since characters like Ankh say it so seriously.