History Trivia / KamenRiderDenO

** Takeru Satoh ceased reprising his role as Ryotaro after the third movie, as he had begun seriously acting in Japanese movies (seriously, he's shown up in ''Film/RurouniKenshin'', ''Manga/{{Beck}}'', ''Manga/{{Bakuman}}'', ''Manga/{{Ajin}}'', and ''Manga/{{Inuyashiki}}''). Takuya Mizoguchi, who was the younger Ryotaro nicknamed "Kotaro" in the ''Ore, Tanjou!!'' movie, became the main Ryotaro starting with the ''Kamen Rider Decade'' episodes set in the World of Den-O, using the same reason in-series for Hana's age reduction to explain why his own age was reduced. But whenever Kamen Rider Den-O has to show up in suit, it's usually Toshihiko Seki as Momotaros rather than Mizoguchi as Ryotaro anymore; it took until ''Heisei Generations FOREVER'', ten years after the third movie, for Satoh to return.

* BonusEpisode: The Hyper Battle DVD, ''[[Recap/KamenRiderDenOSingingDancingGreatTraining Kamen Rider Den-O: Singing, Dancing, Great Training!!]]'' was released with an issue of Televi-Kun Magazine.

* TheWikiRule: Covered as part of [[http://kamenrider.wikia.com/wiki/ Kamen Rider Wiki]], and as an individual series on the [[http://kamenriderdeno.wikia.com/wiki/ Kamen Rider Den-O Wiki]].

* FanNickname:
** Thanks to the Egyptian-looking collar and other elements, Shiro is sometimes called ''Kamen Rider Phara-Oh''.
*** Because of his skull and crossbones mask and resemblance to Gaoh, he's also sometimes known as Gaoh Pirate Form.
** The original Double-Action (the one sung by Momotaros and Ryotaro’s actors) has “Sword Form” added on, likely so it can stand out to the other versions.
* {{Irony}}: The premise of the ''Cho Den-O'' trilogy: the films shine the spotlight on Zeronos, New Den-O and Diend, shoving Den-O ''himself'' in a [[OutOfFocus supporting role]] instead. (Fans did complain about ''Den-O'' becoming a CashCowFranchise, after all...)
* {{Jossed}} When ''Pretty Den-O Is Here!'' was announced, many fans had thought that it would be a crossover with the ''Anime/PrettyCure'' franchise due to the fact that the logo used a similar font type to the then-currently running ''Anime/HealinGoodPrettyCure''. However, the director revealed that this wasn't the case and that it was pretty much a big coincidence.

* RealLifeWritesThePlot: Hana's actress quitting has the show replacing her with a child actress, explained as timeline changes having caused her to de-age.

* RealLifeWritesThePlot: Hana's actress quitting has the show replacing her with a child actress.

** Takeru Satoh ceased reprising his role as Ryotaro after the third movie, as he had begun seriously acting in Japanese movies (seriously, he's shown up in ''Film/RurouniKenshin'', ''Manga/{{Beck}}'', ''Manga/{{Bakuman}}'', ''Manga/{{Ajin}}'', and ''Manga/{{Inuyashiki}}''). Takuya Mizoguchi, who was the younger Ryotaro nicknamed "Kotaro" in the ''Ore, Tanjou!!'' movie, became the main Ryotaro starting with the ''Kamen Rider Decade'' episodes set in the World of Den-O. But whenever Kamen Rider Den-O has to show up in suit, it's usually Toshihiko Seki as Momotaros rather than Mizoguchi as Ryotaro anymore; it took until ''Heisei Generations FOREVER'', ten years after the third movie, for Satoh to return.

** Takeru Satoh ceased reprising his role as Ryotaro after the third movie, as he had begun seriously acting in Japanese movies (seriously, he's shown up in ''Film/RurouniKenshin'', ''Manga/{{Beck}}'', ''Manga/{{Bakuman}}'', ''Manga/{{Ajin}}'', and ''Manga/{{Inuyashiki}}''). Takuya Mizoguchi, who was the younger Ryotaro nicknamed "Kotaro" in the ''Ore, Tanjou!!'' movie, became the main Ryotaro starting with the ''Kamen Rider Decade'' episodes set in the World of Den-O. But whenever Kamen Rider Den-O has to show up in suit, it's usually Tomokazu Seki as Momotaros rather than Mizoguchi as Ryotaro anymore; it took until ''Heisei Generations FOREVER'', ten years after the third movie, for Satoh to return.

* FanNickname: Thanks to the Egyptian-looking collar and other elements, Shiro is sometimes called ''Kamen Rider Phara-Oh''.
** Because of his skull and crossbones mask and resemblance to Gaoh, he's also sometimes known as Gaoh Pirate Form.

* PropRecycling: The movie Riders use reworked Den-O suits; taking it a step further, Gaoh's suit was used to create Yuki, which is the reason [[Series/KamenRiderDecade Diend Complete Form]] doesn't have a Den-O representative[[note]]The producers wanted to use Gaoh, but couldn't because they didn't have the suit anymore, so they decided to just leave Den-O unrepresented, although one does have to wonder why they didn't just use Nega Den-O instead, considering that they used Ryuga instead of Verde to represent ''Ryuki''[[/note]]

** Takeru Satoh ceased reprising his role as Ryotaro after the third movie, as he had begun seriously acting in Japanese movies (seriously, he's shown up in ''Film/RurouniKenshin'', ''Manga/{{Beck}}'', ''Manga/{{Bakuman}}'', ''Manga/{{Ajin}}'', and ''Manga/{{Inuyashiki}}''). Takuya Mizoguchi, who was the younger Ryotaro nicknamed "Kotaro" in the ''Ore, Tanjou!!'' movie, became the main Ryotaro starting with the ''Kamen Rider Decade'' episodes set in the World of Den-O. But whenever Kamen Rider Den-O has to show up in suit, it's usually Tomokazu Seki as Momotaros rather than Mizoguchi as Ryotaro anymore.

* RealLifeWritesThePlot: Hana's actress quitting has the show replacing the character with a child actress.