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Changed line(s) 47 (click to see context) from:
* Accel has two {{Super Mode}}s, [[Series/KamenRiderFaiz one which gives super speed, and the other which allows him to fly.]]
to:
* Accel has two {{Super Mode}}s, [[Series/KamenRiderFaiz [[Series/KamenRider555 one which gives super speed, and the other which allows him to fly.]]
Changed line(s) 49 (click to see context) from:
** The location of the final battle is [[Series/KamenRiderV3 Kazami]] Quarry, which may serve as a LampshadeHanging on the fact that V3 and Accel have similar backstories (losing their parents and little sister to a Kaijin).
to:
** The location of the final battle is [[Series/KamenRiderV3 Kazami]] Quarry, which may serve as a LampshadeHanging on the fact that V3 and Accel have similar backstories (losing their parents and little sister to a Kaijin).Kaijin).
----
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Changed line(s) 6 (click to see context) from:
** Crosses into FunnyAneurysmMoment with the Liar Dopant, who interprets Kintaros' CatchPhrase AND use of actual papers a little differently.
to:
** Crosses into FunnyAneurysmMoment HarsherInHindsight with the Liar Dopant, who interprets Kintaros' CatchPhrase AND use of actual papers a little differently.
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Changed line(s) 36 (click to see context) from:
** Furthermore in human form, she uses boots with stun gun heels - just like [[pmwiki Taki Kazuya]].
to:
** Furthermore in human form, she uses boots with stun gun heels - just like [[pmwiki [[Manga/KamenRiderSpirits Taki Kazuya]].
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Changed line(s) 21 (click to see context) from:
** Similarly, Accel carries many visual similarities to an Ishinomori tokusatsu hero called KaiketsuZubat.
to:
** Similarly, Accel carries many visual similarities to an Ishinomori tokusatsu hero called KaiketsuZubat.Series/KaiketsuZubat.
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Changed line(s) 16 (click to see context) from:
* Double's asymetrical color scheme is reminscent of ''{{Kikaider}}'', another Ishinomori series. And when in [[color:red:Heat]][[color:blue:Trigger]] form, he has the exact same colors as Kikaider 01.
to:
* Double's asymetrical color scheme is reminscent of ''{{Kikaider}}'', ''Series/{{Kikaider}}'', another Ishinomori series. And when in [[color:red:Heat]][[color:blue:Trigger]] form, he has the exact same colors as Kikaider 01.
Changed line(s) 19,20 (click to see context) from:
* Skull is pretty clearly an homage to another Ishinomori creation serving as a proto-Kamen Rider of sorts, the SkullMan.
** Alternatively, it could be a ShoutOut to the manga ''KamenRiderSpirits'', namely to Interpol agent Taki Kazuya, who pretty successfully attempts to become a Kamen Rider himself [[BadassNormal despite lacking any kind of augmentation]]. And to compensate for his lack of cybernetics, Skull Rider uses guns.
** Alternatively, it could be a ShoutOut to the manga ''KamenRiderSpirits'', namely to Interpol agent Taki Kazuya, who pretty successfully attempts to become a Kamen Rider himself [[BadassNormal despite lacking any kind of augmentation]]. And to compensate for his lack of cybernetics, Skull Rider uses guns.
to:
* Skull is pretty clearly an homage to another Ishinomori creation serving as a proto-Kamen Rider of sorts, the SkullMan.
Manga/SkullMan.
** Alternatively, it could be a ShoutOut to the manga''KamenRiderSpirits'', ''Manga/KamenRiderSpirits'', namely to Interpol agent Taki Kazuya, who pretty successfully attempts to become a Kamen Rider himself [[BadassNormal despite lacking any kind of augmentation]]. And to compensate for his lack of cybernetics, Skull Rider uses guns.
** Alternatively, it could be a ShoutOut to the manga
Changed line(s) 35,36 (click to see context) from:
** In KamenRiderTheFIRST Hongo Takeshi/Kamen Rider 1 ws referred to as Hopper.
** Furthermore in human form, she uses boots with stun gun heels - just like [[KamenRiderSPIRITS Taki Kazuya]].
** Furthermore in human form, she uses boots with stun gun heels - just like [[KamenRiderSPIRITS Taki Kazuya]].
to:
** In KamenRiderTheFIRST ''Film/KamenRiderTheFirst'' Hongo Takeshi/Kamen Rider 1 ws referred to as Hopper.
** Furthermore in human form, she uses boots with stun gun heels - just like[[KamenRiderSPIRITS [[pmwiki Taki Kazuya]].
** Furthermore in human form, she uses boots with stun gun heels - just like
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Changed line(s) 45 (click to see context) from:
* The Weather Dopant describing the sight of a Kamen Rider sleeping in the open as 'surreal'...did he catch the ED for KamenRiderKuuga?
to:
* The Weather Dopant describing the sight of a Kamen Rider sleeping in the open as 'surreal'...did he catch the ED for KamenRiderKuuga?Series/KamenRiderKuuga?
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Changed line(s) 37,40 (click to see context) from:
* Mikio Jinno is an {{Expy}} of Okubo Daisuke, the ORE Journal chief from KamenRiderRyuki.
* Kamen Rider Joker looks remarkably similar to KamenRiderBlack, and even strikes the same pose as him.
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan of KamenRiderBlack.
* [[spoiler:The Utopia Dopant]] rather resembles [[{{KamenRiderDen-O}} Kamen Rider Gaoh]], including the way the [[TransformationTrinket trinket]] is dropped to start the transformation
* Kamen Rider Joker looks remarkably similar to KamenRiderBlack, and even strikes the same pose as him.
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan of KamenRiderBlack.
* [[spoiler:The Utopia Dopant]] rather resembles [[{{KamenRiderDen-O}} Kamen Rider Gaoh]], including the way the [[TransformationTrinket trinket]] is dropped to start the transformation
to:
* Mikio Jinno is an {{Expy}} of Okubo Daisuke, the ORE Journal chief from KamenRiderRyuki.
Series/KamenRiderRyuki.
* Kamen Rider Joker looks remarkably similar toKamenRiderBlack, Series/KamenRiderBlack, and even strikes the same pose as him.
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan ofKamenRiderBlack.
Series/KamenRiderBlack.
* [[spoiler:The Utopia Dopant]] rather resembles[[{{KamenRiderDen-O}} [[Series/KamenRiderDenO Kamen Rider Gaoh]], including the way the [[TransformationTrinket trinket]] is dropped to start the transformation
* Kamen Rider Joker looks remarkably similar to
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan of
* [[spoiler:The Utopia Dopant]] rather resembles
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Changed line(s) 2 (click to see context) from:
* Thanks to the two-men-into-one Rider System, we have the first KamenRider to use ''both'' the best-known methods of donning the Rider Belt: Shotaro wears it manually (first done by [[Series/KamenRiderV3 Riderman]] and [[Series/KamenRider555 Faiz]]), and the belt materializes around Philip (started by [[Series/KamenRider the original Kamen Rider]]).
to:
* Thanks to the two-men-into-one Rider System, we have the first KamenRider Franchise/KamenRider to use ''both'' the best-known methods of donning the Rider Belt: Shotaro wears it manually (first done by [[Series/KamenRiderV3 Riderman]] and [[Series/KamenRider555 Faiz]]), and the belt materializes around Philip (started by [[Series/KamenRider the original Kamen Rider]]).
Changed line(s) 10 (click to see context) from:
* And [[color:green:Cyclone]][[color:purple:Joker]] form carries notable elements of [[Series/KamenRider Kamen Rider-1 (Hongo Takeshi)'s]] design: metallic green and black as main colors, red eyes, the scarf, and double silver stripes (only down the middle and not the sleeves and legs.) In a similar vein, [[color:red:Heat]][[color:gray:Metal]] colors are similar to KamenRiderX (who incidentally was the first Rider to wield a rod). Also, [[color:gold:Luna]][[color:blue:Trigger]] has the colors associated with the alternate forms of KamenRiderBlackRX (blue for Prince of Wrath/Biorider, yellow for Prince of Sorrow/Roborider). It should be noted that Roborider's weapon was a gun and Biorider's ability to become a viscous liquid predates the Luna half's bizarre flexibility.
to:
* And [[color:green:Cyclone]][[color:purple:Joker]] form carries notable elements of [[Series/KamenRider Kamen Rider-1 (Hongo Takeshi)'s]] design: metallic green and black as main colors, red eyes, the scarf, and double silver stripes (only down the middle and not the sleeves and legs.) In a similar vein, [[color:red:Heat]][[color:gray:Metal]] colors are similar to KamenRiderX Series/KamenRiderX (who incidentally was the first Rider to wield a rod). Also, [[color:gold:Luna]][[color:blue:Trigger]] has the colors associated with the alternate forms of KamenRiderBlackRX Series/KamenRiderBlackRX (blue for Prince of Wrath/Biorider, yellow for Prince of Sorrow/Roborider). It should be noted that Roborider's weapon was a gun and Biorider's ability to become a viscous liquid predates the Luna half's bizarre flexibility.
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Changed line(s) 3 (click to see context) from:
* With the introduction of the Fang Memory, it plays homage to another relatively popular Belt gimmick: The Fang Memory is capable of attacking enemies on its own, briefly stunning them, a trait first introduced in ''KamenRiderKabuto'' with the Zecters and later also used with Kivat in ''KamenRiderKiva''.
to:
* With the introduction of the Fang Memory, it plays homage to another relatively popular Belt gimmick: The Fang Memory is capable of attacking enemies on its own, briefly stunning them, a trait first introduced in ''KamenRiderKabuto'' ''Series/KamenRiderKabuto'' with the Zecters and later also used with Kivat in ''KamenRiderKiva''.''Series/KamenRiderKiva''.
Changed line(s) 32 (click to see context) from:
** When we first meet Dr Isaka, he's in a tuxedo and bowler hat, playing a piano - referencing the old man who'd been forgotten by everyone except his only friend, the young piano genius [[spoiler:who'd been in a coma for some time, causing the old man to lose his place in time]] from ''KamenRiderDenO''.
to:
** When we first meet Dr Isaka, he's in a tuxedo and bowler hat, playing a piano - referencing the old man who'd been forgotten by everyone except his only friend, the young piano genius [[spoiler:who'd been in a coma for some time, causing the old man to lose his place in time]] from ''KamenRiderDenO''.''Series/KamenRiderDenO''.
Changed line(s) 42 (click to see context) from:
* In the crossover movie set with ''KamenRiderOOO'', we are shown Soukichi Narumi's first case as Kamen Rider Skull. Who does he fight? The Spider and Bat Dopants.
to:
* In the crossover movie set with ''KamenRiderOOO'', ''Series/KamenRiderOOO'', we are shown Soukichi Narumi's first case as Kamen Rider Skull. Who does he fight? The Spider and Bat Dopants.
Changed line(s) 46 (click to see context) from:
* The net-exclusive comedy shorts released alongside ''Double Forever'' manage two Shout Outs to previous ''KamenRider'' shows. When discussing the Feudal Japan Memories from the Nightmare arc, Jinno suggests that the Feudal version of Fang would be "Kiba", followed by saying "[[CatchPhrase Kivatte ikuze!]]". Makura interrupts, saying, "That's from [[Series/KamenRiderKiva that Kouji Seto show]]!" In another short, Shroud tells Akiko that they're going to go on a journey to learn as much as they can about all the Riders; Akiko protests "But it's not like I'm [[Series/KamenRiderDecade Decade]] or anything!"
to:
* The net-exclusive comedy shorts released alongside ''Double Forever'' manage two Shout Outs to previous ''KamenRider'' ''Franchise/KamenRider'' shows. When discussing the Feudal Japan Memories from the Nightmare arc, Jinno suggests that the Feudal version of Fang would be "Kiba", followed by saying "[[CatchPhrase Kivatte ikuze!]]". Makura interrupts, saying, "That's from [[Series/KamenRiderKiva that Kouji Seto show]]!" In another short, Shroud tells Akiko that they're going to go on a journey to learn as much as they can about all the Riders; Akiko protests "But it's not like I'm [[Series/KamenRiderDecade Decade]] or anything!"
Is there an issue? Send a MessageReason:
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Added DiffLines:
''Double'' is laden with homages to the shows that came before it, particularly Showa-era Rider.
* Thanks to the two-men-into-one Rider System, we have the first KamenRider to use ''both'' the best-known methods of donning the Rider Belt: Shotaro wears it manually (first done by [[Series/KamenRiderV3 Riderman]] and [[Series/KamenRider555 Faiz]]), and the belt materializes around Philip (started by [[Series/KamenRider the original Kamen Rider]]).
* With the introduction of the Fang Memory, it plays homage to another relatively popular Belt gimmick: The Fang Memory is capable of attacking enemies on its own, briefly stunning them, a trait first introduced in ''KamenRiderKabuto'' with the Zecters and later also used with Kivat in ''KamenRiderKiva''.
** Speaking of Fang, activating the Maximum Drive requires Double to hit the horn 3 times as done by [[Series/KamenRiderKabuto Kabuto]].
* It should also be noted that Double isn't exactly [[Series/KamenRiderDenO the first Rider to share a body as a gimmick.]] All the colored halves of Double are colored similarly to the Taros, Deneb and Sieg, with the purple areas on Joker corresponding to Ryuta, and Metal silver representing Teddy. And Double uses his hoverbike for the first time against an aquatic monster much like Rod Form used the Radome in his debut.
** Crosses into FunnyAneurysmMoment with the Liar Dopant, who interprets Kintaros' CatchPhrase AND use of actual papers a little differently.
** And Shotaro going into full hero mode, [[spoiler:at the potential risk of his own life]], seems to also homage Kintaros taking over as Den-O at the sight of a person crying.
** Speaking of which, Akiko inherited Momotaros' shouting fits (her reaction to Xtreme Form even mirrors Momo's reaction to getting Climax Form).
---> (In ep. 3) "I'm pissed!...[[CallingYourAttacks part two.]]"
* And [[color:green:Cyclone]][[color:purple:Joker]] form carries notable elements of [[Series/KamenRider Kamen Rider-1 (Hongo Takeshi)'s]] design: metallic green and black as main colors, red eyes, the scarf, and double silver stripes (only down the middle and not the sleeves and legs.) In a similar vein, [[color:red:Heat]][[color:gray:Metal]] colors are similar to KamenRiderX (who incidentally was the first Rider to wield a rod). Also, [[color:gold:Luna]][[color:blue:Trigger]] has the colors associated with the alternate forms of KamenRiderBlackRX (blue for Prince of Wrath/Biorider, yellow for Prince of Sorrow/Roborider). It should be noted that Roborider's weapon was a gun and Biorider's ability to become a viscous liquid predates the Luna half's bizarre flexibility.
** It's probably worth noting here that Kamen Rider-'''2''' (Hayato Ichimonji) also carried those colors. Both of them are usually referred to as: wait for it: [[ExactlyWhatItSaysOnTheTin Double Riders.]]
** Cyclone form is the only one with a scarf. Fitting, considering that the original three Riders were powered by wind and that Cyclone was the name of the {{Cool Bike}}s used by the original Double Riders.
** The spinning circle on [=CycloneJoker=] Xtreme's belt references the one on [[Series/KamenRider the very first Kamen Rider's]] belt, Typhoon. Not only does it look similar, but it's even named Xtyphoon. The fact that Xtreme Memory takes the form of a bird also references the eagle motif on Shocker belt buckles.
** The TrainingFromHell that Shroud puts Terui Ryuu through in ep. 36 is something that Ichigo and most Showa Riders would already be familiar with, courtesy of Tachibana Tobei.
** Perhaps the Masquerade Dopants could also count in as upgraded and glorified Shocker mooks (in suits, no less!) They also get scramblers in ''Forever A to Z''.
* Double's asymetrical color scheme is reminscent of ''{{Kikaider}}'', another Ishinomori series. And when in [[color:red:Heat]][[color:blue:Trigger]] form, he has the exact same colors as Kikaider 01.
* In "The Girl...A", a small girl carries a soft toy that resembles [[Series/KamenRiderRyuki Kamen Rider Knight]].
* The "Joker Extreme" kick order is quite reminding of the leg position of the sideway Rider Kicks.
* Skull is pretty clearly an homage to another Ishinomori creation serving as a proto-Kamen Rider of sorts, the SkullMan.
** Alternatively, it could be a ShoutOut to the manga ''KamenRiderSpirits'', namely to Interpol agent Taki Kazuya, who pretty successfully attempts to become a Kamen Rider himself [[BadassNormal despite lacking any kind of augmentation]]. And to compensate for his lack of cybernetics, Skull Rider uses guns.
** Similarly, Accel carries many visual similarities to an Ishinomori tokusatsu hero called KaiketsuZubat.
* The Arms Dopant not only borrows the [[Series/KamenRiderBlade Trial Undead's]] pastiche of mimicking Kamen Riders, but some design aspects as well (skull-like features and cybernetics).
* Watcherman is a very subtle one: His appearance is based on Ishinomori.
* There's also a parallel between the main characters of ''Double'' and [[Series/TokusouSentaiDekaranger another detective-themed Toei tokusatsu]]:
** Shotaro is Ban ([[HotBlooded impulsive]] [[IdiotHero hero]]) and Hoji (obsessed with being a pro/hardboiled, likes to act cool).
** Philip is Sen (BunnyEarsLawyer, TheSmartGuy) and Jasmine ([[PsychicPowers supernatural powers]], [[IOweYouMyLife formerly saved by their mentor]]).
** Akiko is Umeko ([[{{Kawaiiko}} childish]], TheNapoleon).
** Terui is Tetsu (bike-themed SixthRanger, joins the story due to [[YouKilledMyFather vengeance on his family's murderer]]).
** Sokichi is Doggy (Mentor character with a darker themed transformation.)
* From ''Double Forever: A to Z'', [[spoiler:Kamen Rider Eternal]] not only draws upon [[Series/KamenRiderHibiki elements of Oni design]] (banded armor instead of chestplates, and two-colored flaming motif), but is colored the same as Oni-form Kiriya.
** Before that though, [[spoiler:Bird Dopant]] can be heard repeating the phrase "''oni''i-san, kochira" (normally heard from Douji and Hime) in ep. 18.
** When we first meet Dr Isaka, he's in a tuxedo and bowler hat, playing a piano - referencing the old man who'd been forgotten by everyone except his only friend, the young piano genius [[spoiler:who'd been in a coma for some time, causing the old man to lose his place in time]] from ''KamenRiderDenO''.
** The Hopper Dopant, who [[ExtremityExtremist fights exclusively using kicks]] not unlike [[Series/KamenRiderKabuto Kamen Rider]] [[ExactlyWhatItSaysOnTheTin Kick Hopper]] (especially with the sparks from the heels just like Yaguruma and his spurs)
** Who in turn was a ShoutOut to the original Kamen Rider 1.
** In KamenRiderTheFIRST Hongo Takeshi/Kamen Rider 1 ws referred to as Hopper.
** Furthermore in human form, she uses boots with stun gun heels - just like [[KamenRiderSPIRITS Taki Kazuya]].
* Mikio Jinno is an {{Expy}} of Okubo Daisuke, the ORE Journal chief from KamenRiderRyuki.
* Kamen Rider Joker looks remarkably similar to KamenRiderBlack, and even strikes the same pose as him.
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan of KamenRiderBlack.
* [[spoiler:The Utopia Dopant]] rather resembles [[{{KamenRiderDen-O}} Kamen Rider Gaoh]], including the way the [[TransformationTrinket trinket]] is dropped to start the transformation
** And he uses [[Series/KamenRiderBlade Garren's]] backflipping-drop kick Rider Kick [[spoiler:during the final battle, where it's countered by Double's Double Prism Xtreme]].
* In the crossover movie set with ''KamenRiderOOO'', we are shown Soukichi Narumi's first case as Kamen Rider Skull. Who does he fight? The Spider and Bat Dopants.
* In ''A to Z: The Gaia Memory of Fate'', several sound effects first used in ''Series/KamenRider'' are used a couple times.
** Speaking of which, the sound of the [[Series/KamenRiderHibiki Ongeki drum]] can be heard during the JidaiGeki dream in "The Nightmarish H" (the moment Terui Ryuu shows up).
* The Weather Dopant describing the sight of a Kamen Rider sleeping in the open as 'surreal'...did he catch the ED for KamenRiderKuuga?
* The net-exclusive comedy shorts released alongside ''Double Forever'' manage two Shout Outs to previous ''KamenRider'' shows. When discussing the Feudal Japan Memories from the Nightmare arc, Jinno suggests that the Feudal version of Fang would be "Kiba", followed by saying "[[CatchPhrase Kivatte ikuze!]]". Makura interrupts, saying, "That's from [[Series/KamenRiderKiva that Kouji Seto show]]!" In another short, Shroud tells Akiko that they're going to go on a journey to learn as much as they can about all the Riders; Akiko protests "But it's not like I'm [[Series/KamenRiderDecade Decade]] or anything!"
* Accel has two {{Super Mode}}s, [[Series/KamenRiderFaiz one which gives super speed, and the other which allows him to fly.]]
** Also from ''W Returns: Accel'', the Commander Dopant's {{Mooks}} have [[Series/KamenRiderKabuto Zectrooper body armor]], which had previously been recycled for the [[Series/KamenRiderDenO Lion Imagin's]] minions.
** The location of the final battle is [[Series/KamenRiderV3 Kazami]] Quarry, which may serve as a LampshadeHanging on the fact that V3 and Accel have similar backstories (losing their parents and little sister to a Kaijin).
* Thanks to the two-men-into-one Rider System, we have the first KamenRider to use ''both'' the best-known methods of donning the Rider Belt: Shotaro wears it manually (first done by [[Series/KamenRiderV3 Riderman]] and [[Series/KamenRider555 Faiz]]), and the belt materializes around Philip (started by [[Series/KamenRider the original Kamen Rider]]).
* With the introduction of the Fang Memory, it plays homage to another relatively popular Belt gimmick: The Fang Memory is capable of attacking enemies on its own, briefly stunning them, a trait first introduced in ''KamenRiderKabuto'' with the Zecters and later also used with Kivat in ''KamenRiderKiva''.
** Speaking of Fang, activating the Maximum Drive requires Double to hit the horn 3 times as done by [[Series/KamenRiderKabuto Kabuto]].
* It should also be noted that Double isn't exactly [[Series/KamenRiderDenO the first Rider to share a body as a gimmick.]] All the colored halves of Double are colored similarly to the Taros, Deneb and Sieg, with the purple areas on Joker corresponding to Ryuta, and Metal silver representing Teddy. And Double uses his hoverbike for the first time against an aquatic monster much like Rod Form used the Radome in his debut.
** Crosses into FunnyAneurysmMoment with the Liar Dopant, who interprets Kintaros' CatchPhrase AND use of actual papers a little differently.
** And Shotaro going into full hero mode, [[spoiler:at the potential risk of his own life]], seems to also homage Kintaros taking over as Den-O at the sight of a person crying.
** Speaking of which, Akiko inherited Momotaros' shouting fits (her reaction to Xtreme Form even mirrors Momo's reaction to getting Climax Form).
---> (In ep. 3) "I'm pissed!...[[CallingYourAttacks part two.]]"
* And [[color:green:Cyclone]][[color:purple:Joker]] form carries notable elements of [[Series/KamenRider Kamen Rider-1 (Hongo Takeshi)'s]] design: metallic green and black as main colors, red eyes, the scarf, and double silver stripes (only down the middle and not the sleeves and legs.) In a similar vein, [[color:red:Heat]][[color:gray:Metal]] colors are similar to KamenRiderX (who incidentally was the first Rider to wield a rod). Also, [[color:gold:Luna]][[color:blue:Trigger]] has the colors associated with the alternate forms of KamenRiderBlackRX (blue for Prince of Wrath/Biorider, yellow for Prince of Sorrow/Roborider). It should be noted that Roborider's weapon was a gun and Biorider's ability to become a viscous liquid predates the Luna half's bizarre flexibility.
** It's probably worth noting here that Kamen Rider-'''2''' (Hayato Ichimonji) also carried those colors. Both of them are usually referred to as: wait for it: [[ExactlyWhatItSaysOnTheTin Double Riders.]]
** Cyclone form is the only one with a scarf. Fitting, considering that the original three Riders were powered by wind and that Cyclone was the name of the {{Cool Bike}}s used by the original Double Riders.
** The spinning circle on [=CycloneJoker=] Xtreme's belt references the one on [[Series/KamenRider the very first Kamen Rider's]] belt, Typhoon. Not only does it look similar, but it's even named Xtyphoon. The fact that Xtreme Memory takes the form of a bird also references the eagle motif on Shocker belt buckles.
** The TrainingFromHell that Shroud puts Terui Ryuu through in ep. 36 is something that Ichigo and most Showa Riders would already be familiar with, courtesy of Tachibana Tobei.
** Perhaps the Masquerade Dopants could also count in as upgraded and glorified Shocker mooks (in suits, no less!) They also get scramblers in ''Forever A to Z''.
* Double's asymetrical color scheme is reminscent of ''{{Kikaider}}'', another Ishinomori series. And when in [[color:red:Heat]][[color:blue:Trigger]] form, he has the exact same colors as Kikaider 01.
* In "The Girl...A", a small girl carries a soft toy that resembles [[Series/KamenRiderRyuki Kamen Rider Knight]].
* The "Joker Extreme" kick order is quite reminding of the leg position of the sideway Rider Kicks.
* Skull is pretty clearly an homage to another Ishinomori creation serving as a proto-Kamen Rider of sorts, the SkullMan.
** Alternatively, it could be a ShoutOut to the manga ''KamenRiderSpirits'', namely to Interpol agent Taki Kazuya, who pretty successfully attempts to become a Kamen Rider himself [[BadassNormal despite lacking any kind of augmentation]]. And to compensate for his lack of cybernetics, Skull Rider uses guns.
** Similarly, Accel carries many visual similarities to an Ishinomori tokusatsu hero called KaiketsuZubat.
* The Arms Dopant not only borrows the [[Series/KamenRiderBlade Trial Undead's]] pastiche of mimicking Kamen Riders, but some design aspects as well (skull-like features and cybernetics).
* Watcherman is a very subtle one: His appearance is based on Ishinomori.
* There's also a parallel between the main characters of ''Double'' and [[Series/TokusouSentaiDekaranger another detective-themed Toei tokusatsu]]:
** Shotaro is Ban ([[HotBlooded impulsive]] [[IdiotHero hero]]) and Hoji (obsessed with being a pro/hardboiled, likes to act cool).
** Philip is Sen (BunnyEarsLawyer, TheSmartGuy) and Jasmine ([[PsychicPowers supernatural powers]], [[IOweYouMyLife formerly saved by their mentor]]).
** Akiko is Umeko ([[{{Kawaiiko}} childish]], TheNapoleon).
** Terui is Tetsu (bike-themed SixthRanger, joins the story due to [[YouKilledMyFather vengeance on his family's murderer]]).
** Sokichi is Doggy (Mentor character with a darker themed transformation.)
* From ''Double Forever: A to Z'', [[spoiler:Kamen Rider Eternal]] not only draws upon [[Series/KamenRiderHibiki elements of Oni design]] (banded armor instead of chestplates, and two-colored flaming motif), but is colored the same as Oni-form Kiriya.
** Before that though, [[spoiler:Bird Dopant]] can be heard repeating the phrase "''oni''i-san, kochira" (normally heard from Douji and Hime) in ep. 18.
** When we first meet Dr Isaka, he's in a tuxedo and bowler hat, playing a piano - referencing the old man who'd been forgotten by everyone except his only friend, the young piano genius [[spoiler:who'd been in a coma for some time, causing the old man to lose his place in time]] from ''KamenRiderDenO''.
** The Hopper Dopant, who [[ExtremityExtremist fights exclusively using kicks]] not unlike [[Series/KamenRiderKabuto Kamen Rider]] [[ExactlyWhatItSaysOnTheTin Kick Hopper]] (especially with the sparks from the heels just like Yaguruma and his spurs)
** Who in turn was a ShoutOut to the original Kamen Rider 1.
** In KamenRiderTheFIRST Hongo Takeshi/Kamen Rider 1 ws referred to as Hopper.
** Furthermore in human form, she uses boots with stun gun heels - just like [[KamenRiderSPIRITS Taki Kazuya]].
* Mikio Jinno is an {{Expy}} of Okubo Daisuke, the ORE Journal chief from KamenRiderRyuki.
* Kamen Rider Joker looks remarkably similar to KamenRiderBlack, and even strikes the same pose as him.
** This can count as an {{Homage}}, as Renn Kiriyama/Shotaro has stated he is a huge fan of KamenRiderBlack.
* [[spoiler:The Utopia Dopant]] rather resembles [[{{KamenRiderDen-O}} Kamen Rider Gaoh]], including the way the [[TransformationTrinket trinket]] is dropped to start the transformation
** And he uses [[Series/KamenRiderBlade Garren's]] backflipping-drop kick Rider Kick [[spoiler:during the final battle, where it's countered by Double's Double Prism Xtreme]].
* In the crossover movie set with ''KamenRiderOOO'', we are shown Soukichi Narumi's first case as Kamen Rider Skull. Who does he fight? The Spider and Bat Dopants.
* In ''A to Z: The Gaia Memory of Fate'', several sound effects first used in ''Series/KamenRider'' are used a couple times.
** Speaking of which, the sound of the [[Series/KamenRiderHibiki Ongeki drum]] can be heard during the JidaiGeki dream in "The Nightmarish H" (the moment Terui Ryuu shows up).
* The Weather Dopant describing the sight of a Kamen Rider sleeping in the open as 'surreal'...did he catch the ED for KamenRiderKuuga?
* The net-exclusive comedy shorts released alongside ''Double Forever'' manage two Shout Outs to previous ''KamenRider'' shows. When discussing the Feudal Japan Memories from the Nightmare arc, Jinno suggests that the Feudal version of Fang would be "Kiba", followed by saying "[[CatchPhrase Kivatte ikuze!]]". Makura interrupts, saying, "That's from [[Series/KamenRiderKiva that Kouji Seto show]]!" In another short, Shroud tells Akiko that they're going to go on a journey to learn as much as they can about all the Riders; Akiko protests "But it's not like I'm [[Series/KamenRiderDecade Decade]] or anything!"
* Accel has two {{Super Mode}}s, [[Series/KamenRiderFaiz one which gives super speed, and the other which allows him to fly.]]
** Also from ''W Returns: Accel'', the Commander Dopant's {{Mooks}} have [[Series/KamenRiderKabuto Zectrooper body armor]], which had previously been recycled for the [[Series/KamenRiderDenO Lion Imagin's]] minions.
** The location of the final battle is [[Series/KamenRiderV3 Kazami]] Quarry, which may serve as a LampshadeHanging on the fact that V3 and Accel have similar backstories (losing their parents and little sister to a Kaijin).
