History Series / ToeiUniverse

* ''Series/NinpuuSentaiHurricaneger'' (2002-2003): Crossed over with ''Gaoranger'' in ''Hurricaneger vs. Gaoranger''.

* ''Series/EngineSentaiGoOnger'' (2008-2009): Crossed over with ''Gekiranger'' in ''Go-Onger vs. Gekiranger''.

! Connected Toei Properties

** ''Anime/FutariWaPrettyCure'' and its direct sequel ''Futari wa Pretty Cure Max Heart'' have audio drama crossovers with ''Dekaranger'' and ''Magiranger'' respectively.

* ''Series/TensouSentaiGoseiger'' (2010-2011): Crossed over with ''Shinkenger'' in ''Goseiger vs. Shinkenger'', which also introduces the team from ''Gokaiger''.

* ''Series/KamenRiderGhost'': Crossed over with ''Drive'' in ''Super Movie War Genesis''. Crossed over with the original ''Kamen Rider'' in ''Kamen Rider 1'', which was promoted by a crossover with ''Doubutsu Sentai Zyuohger''. Features an EarlyBirdCameo by Ex-Aid in TheMovie, his dark counterpart Genm in the penultimate episode, and both Ex-Aid & Genm in the finale. Notably, the TieInNovel handwaves the continuity errors in ''Super Movie War Genesis'' as the events of that movie taking place in an AlternateTimeline.

* ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' (2018-2019): Crossed over with ''Kyuranger'' (and a cameo from the SixthRanger of ''Zyuohger'' to [[BreakingTheFourthWall complain about his season]] not getting a proper crossover with the next) in ''Lupinranger VS Patranger VS Kyuranger''.

* ''Series/KamenRiderGaim'': Crossed over with ''Wizard'' in the ''Sengoku Movie Battle''. Began the tradition of ''Rider'' and ''Sentai'' having crossovers to promote the new ''Super Hero Taisen'' installment, by having a crossover with ''Ressha Sentai [=ToQger=]''.

** ''Series/KamenRiderAmazons'': ''Amazons'' is a streaming series, visually derived from ''Amazon'' but with no continuity. It is confirmed by [[Main/WordOfGod producer Shinichiro Shirakura]] to take place in an alternate reality to the prime ''Kamen Rider'' universe, which is acknowledged by the appearance of ''Amazons'' characters in ''Chou Super Hero Taisen''.
* ''Series/KamenRiderExAid'': Crossed over with ''Ghost'', ''Drive'', ''Gaim'', and ''Wizard'' in ''Heisei Generations''. Promoted ''Chou Super Hero Taisen'' with a brief ''Uchu Sentai Kyuranger'' cameo in an episode, and crosses over with ''Agito'', ''Gaim'', and ''Blade'' in said movie's sequel miniseries ''Kamen Sentai Gorider''. Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode, with both appearances leading directly into the next crossover movie's plot.

* ''Series/KamenRiderZiO'': StealthSequel to ''Decade'', crossing over with all prior Heisei era seasons in various tribute episodes and movies, including ''Build'' in ''Heisei Generations FOREVER'', which also functions as a tribute episode dedicated to ''Double'', ''Den-O'', and particularly ''Kuuga'', and is a RealWorldEpisode. TheMovie was a tribute episode for ''Drive'', as well as "Lost Heisei Riders" i.e. the three films from the 90's, and had a cameo from the protagonist of ''Kamen Norider''[[note]]WordOfGod claims these movies are CanonDiscontinuity and split into an AlternateTimeline's ending respectively, but they affect the status quo and narrative just enough that BroadStrokes versions of their events must have occurred in the series[[/note]]. The finale suggests a [[spoiler:CosmicRetcon splitting the twenty Heisei era seasons into their own worlds as the natural state of being]], but continues to treat all Riders as sharing a universe in post-series crossovers.

* Things become complicated with the revived 21st century run of ''Kamen Rider'', which continues to this day. Generally, each series has a completely different mythos/lore. The first nine are totally standalone, with small exceptions.
** ''Series/KamenRiderKuuga'' (2000-01): The series once mentions a deep-voiced Professor Hongo from Jounan University, the fictional college where Takeshi Hongo studied back in the original ''Kamen Rider''.
** ''Series/KamenRiderAgito'' (2001-02): ''Agito'' was conceived as a sequel to ''Kuuga'' ([[ContinuitySnarl which supposedly took place two years prior despite both shows taking place in their year of broadcast]]) but the final show has only BroadStrokes, with references to the Unidentified Lifeforms (Gurongi) and No. 4 (Kuuga) in the early episodes, the remaining legacy being SAUL (Squad against Unidentified Lifeforms) and G3, whose design is derived from Kuuga.
** ''Series/KamenRiderRyuki'': A DVD special has Ryuki meeting the unfamiliar Agito, but it was AllJustADream.
** ''Series/KamenRider555''
** ''Series/KamenRiderBlade''
** ''Series/KamenRiderHibiki''
** ''Series/KamenRiderKabuto''
** ''Series/KamenRiderDenO'': Due to being a CashCowFranchise, ''Den-O'' characters continue to appear in various movies after the end of their own series, most prominently a sub-franchise that spins off from the tribute episodes in ''Decade''.
** ''Series/KamenRiderKiva'': ''Kiva'' and ''Den-O'' crossover in ''Climax Deka''.
** ''Series/KamenRiderDecade'': This series introduces TheMultiverse, with alternate universe counterparts of each of the first nine Heisei Rider series. From this point onwards, most Rider series, from the original to the present, are said to take place in the same world, with an annual crossover movie between the current series and the previous one.
*** ''Film/KamenRiderG'': An AffectionateParody short which features Decade (and the first nine Heisei Riders) dropping in on the eponymous hero via a dimensional wall.
** ''Series/KamenRiderDouble'': This series introduces Foundation X, an evil organization which resurfaces to haunt later shows. Crossed over with ''Decade'' in ''Movie War 2010''. ''Double'' itself provides a SequelHook to ''OOO'' by mentioning the Core Medal in its antepenultimate episode, as well as starting the tradition of the new Rider making an EarlyBirdCameo in TheMovie (which fits into ''Double'''s continuity).
** ''Series/KamenRiderOOO'': Crossed over with ''Double'' in ''Movie War Core''. Provides a SequelHook to ''Fourze'' by having two supporting characters make TheCameo in the final episode, while TheMovie hosts the debut of Fourze himself.
** ''Series/KamenRiderFourze'': Crossed over with ''OOO'', ''Double'', and the original Seven Legendary Riders in ''Movie War Mega Max''. Provides a SequelHook to ''Wizard'' by having him make TheCameo out of his suit in the finale, while TheMovie hosts the debut of Wizard as a Rider.
** ''Series/KamenRiderWizard'': Crossed over with ''Fourze'', ''OOO'', and ''Double'' in ''Movie War Ultimatum''. Closes with a TwoPartEpisode in which Wizard ([[Main/SixthRanger and Beast]]) are transported to an AlternateUniverse along with the first thirteen Heisei Rider protagonists and the new guy, Gaim.
** ''Series/KamenRiderGaim'': Crossed over with ''Wizard'' in the ''Sengoku Movie Battle''. Began the tradition of ''Rider'' and ''Sentai'' having crossovers to promote the new ''Super Hero Taisen'' installment, by having a crossover with ''Ressha Sentai [=ToQger=]''.
** ''Series/KamenRiderDrive'': Crossed over with ''Gaim'' in ''Movie War Full Throttle''. Features an EarlyBirdCameo by Ghost in TheMovie as well as the final two episodes. Also crossed over with a ''Double'' character in the ''Drive Saga: Chaser'' V-Cinema. Crossed over with ''Shuriken Sentai Ninninger'' to promote ''Super Hero Taisen GP'' (though the special notably treats ''Drive'' and ''Ninninger'' as being in separate universes). Said movie's sequel miniseries crosses over with ''Den-O'' and acts as a FullyAbsorbedFinale to ''555''.
** ''Series/KamenRiderGhost'': Crossed over with ''Drive'' in ''Super Movie War Genesis''. Crossed over with the original ''Kamen Rider'' in ''Kamen Rider 1'', which was promoted by a crossover with ''Doubutsu Sentai Zyuohger''. Features an EarlyBirdCameo by Ex-Aid in TheMovie, his dark counterpart Genm in the penultimate episode, and both Ex-Aid & Genm in the finale. Notably, the TieInNovel handwaves the continuity errors in ''Super Movie War Genesis'' as the events of that movie taking place in an AlternateTimeline.
*** ''Series/KamenRiderAmazons'': ''Amazons'' is a streaming series, visually derived from ''Amazon'' but with no continuity. It is confirmed by [[Main/WordOfGod producer Shinichiro Shirakura]] to take place in an alternate reality to the prime ''Kamen Rider'' universe, which is acknowledged by the appearance of ''Amazons'' characters in ''Chou Super Hero Taisen''.
** ''Series/KamenRiderExAid'': Crossed over with ''Ghost'', ''Drive'', ''Gaim'', and ''Wizard'' in ''Heisei Generations''. Promoted ''Chou Super Hero Taisen'' with a brief ''Uchu Sentai Kyuranger'' cameo in an episode, and crosses over with ''Agito'', ''Gaim'', and ''Blade'' in said movie's sequel miniseries ''Kamen Sentai Gorider''. Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode, with both appearances leading directly into the next crossover movie's plot.
** ''Series/KamenRiderBuild'': Uniquely, ''Build'' sets itself in an AlternateUniverse to the prime ''Kamen Rider'' reality, as seen when it crosses over with ''Ex-Aid'', ''Ghost'', ''Gaim'', ''Fourze'', and ''OOO'' in ''Heisei Generations FINAL''. Features an EarlyBirdCameo by Zi-O in TheMovie. According to [[WordOfGod producer Takahito Ōmori]], the finale concluding with [[spoiler:the World of Build becoming a MergedReality with the main universe into a New World]] was intended to more easily facilitate future crossovers.
** ''Series/KamenRiderZiO'': StealthSequel to ''Decade'', crossing over with all prior Heisei era seasons in various tribute episodes and movies, including ''Build'' in ''Heisei Generations FOREVER'', which also functions as a tribute episode dedicated to ''Double'', ''Den-O'', and particularly ''Kuuga'', and is a RealWorldEpisode. TheMovie was a tribute episode for ''Drive'', as well as "Lost Heisei Riders" i.e. the three films from the 90's, and had a cameo from the protagonist of ''Kamen Norider''[[note]]WordOfGod claims these movies are CanonDiscontinuity and split into an AlternateTimeline's ending respectively, but they affect the status quo and narrative just enough that BroadStrokes versions of their events must have occurred in the series[[/note]]. The finale suggests a [[spoiler:CosmicRetcon splitting the twenty Heisei era seasons into their own worlds as the natural state of being]], but continues to treat all Riders as sharing a universe in post-series crossovers.
** ''Series/KamenRiderZeroOne'': Crossed over with ''Zi-O'' in ''Reiwa: The First Generation'', which also functions as a tribute episode to the original ''Kamen Rider'', [[spoiler:and which indicates the twenty one universes the World of Zi-O split into at the end of the previous season have become a MergedReality once again]]. Also crossed over with ''Ex-Aid'' in the ''Kamen Rider Genms: The Presidents'' miniseries.
** ''Series/KamenRiderSaber'': Crossed over with ''Ghost'' in the ''Kamen Rider Saber × Ghost'' and ''Kamen Rider Specter × Blades'' specials. Also had a brief cameo from ''Gaim'' characters in an episode to promote ''Gaim Gaiden''.

* ''Series/DoubutsuSentaiZyuohger'' (2016-2017): Guest stars the team from ''Gokaiger'' in a TwoPartEpisode. Crossed over with ''Ninninger'' (plus TheCameo from the first 38 Super Sentai) in ''Zyuohger vs. Ninninger'', which also introduces the team from ''Kyuranger''.

** ''Anime/FutariWaPrettyCure'' and its direct sequel ''Max Heart'' have audio drama crossovers with ''Dekaranger'' and ''Magiranger'' respectively.

!Kamen Rider

** ''Series/KamenRiderGaim'': Crossed over with ''Wizard'' in the ''Sengoku Movie Battle''. Began the tradition of ''Rider'' and ''Sentai'' having crossovers to promote the new ''Super Hero Taisen'' installment, by having a crossover with ''[=ToQger=]''.
** ''Series/KamenRiderDrive'': Crossed over with ''Gaim'' in ''Movie War Full Throttle''. Features an EarlyBirdCameo by Ghost in TheMovie as well as the final two episodes. Also crossed over with a ''Double'' character in the ''Drive Saga: Chaser'' V-Cinema. Crossed over with ''Ninninger'' to promote ''Super Hero Taisen GP'' (though the special notably treats ''Drive'' and ''Ninninger'' as being in separate universes). Said movie's sequel miniseries crosses over with ''Den-O'' and acts as a FullyAbsorbedFinale to ''555''.
** ''Series/KamenRiderGhost'': Crossed over with ''Drive'' in ''Super Movie War Genesis''. Crossed over with the original ''Kamen Rider'' in ''Kamen Rider 1'', which was promoted by a crossover with ''Zyuohger''. Features an EarlyBirdCameo by Ex-Aid in TheMovie, his dark counterpart Genm in the penultimate episode, and both Ex-Aid & Genm in the finale. Notably, the TieInNovel handwaves the continuity errors in ''Super Movie War Genesis'' as the events of that movie taking place in an AlternateTimeline.

** ''Series/KamenRiderExAid'': Crossed over with ''Ghost'', ''Drive'', ''Gaim'', and ''Wizard'' in ''Heisei Generations''. Promoted ''Chou Super Hero Taisen'' with a brief ''Kyuranger'' cameo in an episode, and crosses over with ''Agito'', ''Gaim'', and ''Blade'' in said movie's sequel miniseries ''Kamen Sentai Gorider''. Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode, with both appearances leading directly into the next crossover movie's plot.

** ''Series/KamenRiderZiO'': StealthSequel to ''Decade'', crossing over with all prior Heisei era seasons in various tribute episodes and movies, including ''Build'' in ''Heisei Generations FOREVER'', which also functions as a tribute episode dedicated to ''Double'', ''Den-O'', and particularly ''Kuuga'', and is a RealWorldEpisode. TheMovie was a tribute episode for ''Drive'', as well as "Lost Heisei Riders" i.e. the three films from the 90's, and had a cameo from the protagonist of ''Kamen Norider''[[note]]WordOfGod claims these movies are CanonDiscontinuity and split into an AlternateTmeline's ending respectively, but they affect the status quo and narrative just enough that BroadStrokes versions of their events must have occurred in the series[[/note]]. The finale suggests a [[spoiler:CosmicRetcon splitting the twenty Heisei era seasons into their own worlds as the natural state of being]], but continues to treat all Riders as sharing a universe in post-series crossovers.

** The ''Super Sentai Movie Party'' double feature shows onscreen interactions between [[Series/MashinSentaiKiramager KiramaiRed]], [[Series/KishiryuSentaiRyusoulger RyusoulRed]], and [[Anime/StarTwinklePrettyCure Cure Star]] before and after the dance sequence guest starring other Pretty Cures, with [=KiramaiRed=] calling Cure Star his senpai.

** Anime/FutariWaPrettyCure and its direct sequel ''Max Heart'' have audio drama crossovers with ''Dekaranger'' and ''Magiranger'' respectively.

! Connected Toei Toku

** ''Series/KamenRiderZiO'': StealthSequel to ''Decade'', crossing over with all prior Heisei era seasons in various tribute episodes and movies, including ''Build'' in ''Heisei Generations FOREVER'', which also functions as a tribute episode dedicated to ''Double'', ''Den-O'', and particularly ''Kuuga''. TheMovie was a tribute episode for ''Drive'', as well as "Lost Heisei Riders" i.e. the three films from the 90's, and had a cameo from the protagonist of ''Kamen Norider''. The finale suggests a [[spoiler:CosmicRetcon splitting the twenty Heisei era seasons into their own worlds as the natural state of being]], but continues to treat all Riders as sharing a universe in post-series crossovers.

From 2012 onwards, ''Super Sentai'' and ''Metal Heroes'' are consistently treated as taking place in the same universe.

Generally, individual Sentai have their own mythos and are generally independent continuity-wise, with {{crossover}}s taking place in TheMovie or other specials. However, televised crossovers have become more common in recent years, especially after ''Gokaiger''. Thus, the majority of Super Sentai are taken to take place in the same universe.

* ''Series/SamuraiSentaiShinkenger'' (2009-2010): Crossed over with ''Go-Onger'' in ''Shinkenger vs. Go-Onger'', which also starts a new tradition of EarlyBirdCameo by introducing the team from ''Goseiger''. Was one of the worlds of TheMultiverse visited in ''Decade'', which treated the World of Shinkenger as one without Riders.

* ''Series/KaizokuSentaiGokaiger'' (2011-2012): The 35th anniversary series, ''Gokaiger's'' setting is a world where the first 34 Super Sentai all exist, with the Gokaigers inheriting the powers and {{Continuity Cameo}}s galore. Started the trend of ''Metal Hero'' crossovers by doing so with ''Gavan'' (the first Metal Hero) in ''Gokaiger vs. Gavan'', which also introduces the team from ''Go-Busters''.

* ''Series/ResshaSentaiToQger'' (2014-2015): Crossed over with ''Kyoryuger'' in ''[=ToQger=] vs. Kyoryuger'', which also introduces the team from ''Ninninger''.
* ''Series/ShurikenSentaiNinninger'' (2015-2016): Uniquely, ''Ninninger'' hosted several guest appearances from legendary heroes in its televised run (including characters from ''Kakuranger'', ''Hurricaneger'', ''Goranger'', ''Magiranger'', and even ''Series/SekaiNinjaSenJiraiya''). Crossed over with ''[=ToQger=]'' in ''Ninninger vs. [=ToQger=]'', which also introduces the team from ''Zyuohger''.

* ''Series/UchuSentaiKyuranger'' (2017-2018): Uniquely, ''Kyuranger'' sets itself in an AlternateUniverse to the prime ''Super Sentai''/''Space Squad'' reality, as seen when the team crosses dimensions and meets the Dekarangers and Space Sheriffs in episode 18, which is recalled in #27 (the RecapEpisode).

* ''Series/KikaiSentaiZenkaiger'' (2021-2022): Like ''Zi-O'', ''Zenkaiger'' treats all previous seasons as taking place in their own individual worlds, though the extent to which they are separate is currently unclear.

* ''Series/SamuraiSentaiShinkenger'' (2009-2010): Crossed over with ''Go-Onger'' in ''Shinkenger vs. Go-Onger'', which also starts a new tradition of EarlyBirdCameo by introducing the team from ''Goseiger''.
* ''Series/TensouSentaiGoseiger'' (2010-2011): Crossed over with ''Shinkenger'' in ''Goseiger vs. Shinkenger'', which also introduces the team from ''Gokaiger''. Was one of the worlds of TheMultiverse visited in ''Decade'', which treated the World of Shinkenger as one without Riders.

* ''Series/JAKQDengekitai'' (1977): The first two Sentai team up in ''Series/JAKQDengekitaiVsGoranger''. There are mentions of the heroes of ''Kamen Rider V3'', ''Kamen Rider Amazon'', and ''Kikaider'' in said movie.

** ''Series/KamenRiderZiO'': StealthSequel to ''Decade'', crossing over with all prior Heisei era seasons in various tribute episodes and movies, including ''Build'' in ''Heisei Generations FOREVER'', which also functions as a tribute episode dedicated to ''Double'', ''Den-O'', and particularly ''Kuuga''. The finale suggests a [[spoiler:CosmicRetcon splitting the twenty Heisei era seasons into their own worlds as the natural state of being]], but continues to treat all Riders as sharing a universe in post-series crossovers.

*** ''Series/KamenRiderG'': An AffectionateParody short which features Decade (and the first nine Heisei Riders) dropping in on the eponymous hero via a dimensional wall.

** ''Series/KamenRiderExAid'': Crossed over with ''Ghost'', ''Drive'', ''Gaim'', and ''Wizard'' in ''Heisei Generations''. Promoted ''Chou Super Hero Taisen'' with a brief ''Kyuranger'' cameo in an episode, and crosses over with ''Agito'', ''Gaim'', and ''Blade'' in said movie's sequel miniseries ''Kamen Sentai Gorider''. Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode, with both appearances leading directly into the next crossover movie's plot.

** ''Series/KamenRiderSaber'': Crossed over with ''Ghost'' in the ''Kamen Rider Saber × Ghost'' and ''Kamen Rider Specter × Blades'' specials. Also had a brief cameo from ''Gaim'' characters in an episode to promote ''Gaim Gaiden''.

* ''Series/ChourikiSentaiOhranger'' (1995-1996): Crossed over with ''Kakuranger'' in ''Olé vs. Kakuranger''.

** ''Series/KamenRiderAgito'' (2001-02): ''Agito'' was conceived as a sequel to ''Kuuga'' ([[Main/ContinuitySnarl which supposedly took place two years prior despite both shows taking place in their year of broadcast]]) but the final show has only BroadStrokes, with references to the Unidentified Lifeforms (Gurongi) and No. 4 (Kuuga) in the early episodes, the remaining legacy being SAUL (Squad against Unidentified Lifeforms) and G3, whose design is derived from Kuuga.

** ''Series/KamenRiderDenO''
** ''Series/KamenRiderKiva'': ''Kiva'' and ''Den-O'' crossover in Climax Deka.

** ''Series/KamenRiderDouble'': This series introduces Foundation X, an evil organization which resurfaces to haunt later shows. Crossed over with ''Decade'' in ''Movie War 2010''. ''Double'' itself provides a SequelHook to ''OOO'' by mentioning the Core Medal in its antepenultimate episode, as well as starting the tradition of the new Rider making an EarlyBirdCameo in TheMovie (which fits into Double's continuity).

** ''Series/KamenRiderFourze'': Crossed over with ''OOO'', ''Double'' and the original Seven Legendary Riders in ''Movie War Mega Max''. Provides a SequelHook to ''Wizard'' by having him make TheCameo out of his suit in the finale, while TheMovie hosts the debut of Wizard as a Rider.
** ''Series/KamenRiderWizard'': Crossed over with ''Fourze'', ''OOO'' and ''Double'' in ''Movie War Ultimatum''. Closes with a TwoPartEpisode in which Wizard ([[Main/SixthRanger and Beast]]) are transported to an AlternateUniverse along with the first thirteen Heisei Rider protagonists and the new guy, Gaim.
** ''Series/KamenRiderGaim'': Crossed over with ''Wizard'' in the ''Sengoku Movie Battle''.
** ''Series/KamenRiderDrive'': Crossed over with ''Gaim'' in ''Movie War Full Throttle''. Features an EarlyBirdCameo by Ghost in TheMovie as well as the final two episodes.
** ''Series/KamenRiderGhost'': Crossed over with ''Drive'' in ''Super Movie War Genesis''. Features an EarlyBirdCameo by Ex-Aid in TheMovie, his dark counterpart Genm in the penultimate episode, and both Ex-Aid & Genm in the finale.

** ''Series/KamenRiderExAid'': Crossed over with ''Ghost'', ''Drive'', ''Gaim'' and ''Wizard'' in ''Heisei Generations''. Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode.
** ''Series/KamenRiderBuild'': Uniquely, ''Build'' sets itself in an AlternateUniverse to the prime ''Kamen Rider'' reality, as seen when it crosses over with ''Ex-Aid'', ''Ghost'', ''Gaim'', ''Fourze'' and ''OOO'' in ''Heisei Generations FINAL''. Features an EarlyBirdCameo by Zi-O in TheMovie.
** ''Series/KamenRiderZiO'':
** ''Series/KamenRiderZeroOne'':
** ''Series/KamenRiderSaber'':

* ''Series/JAKQDengekitai'' (1977): The first two Sentai team up in ''Series/JAKQDengekitaiVsGoranger''.

* ''Series/ChourikiSentaiOhranger'' (1995-1996): Crossed over with ''Kakuranger'' in ''Ohranger vs. Kakuranger''.

* ''Series/KyukyuSentaiGoGoV'' (1999-2000): Crossed over with ''Gingaman'' in ''GoGoV vs. Gingaman''.
* ''Series/MiraiSentaiTimeranger'' (2000-2001): Crossed over with ''GoGoV'' in ''Timeranger vs. GoGoV''.

* ''Series/TensouSentaiGoseiger'' (2010-2011): Crossed over with ''Shinkenger'' in ''Goseiger vs. Shinkenger'', which also introduces the team from ''Gokaiger''.
* ''Series/KaizokuSentaiGokaiger'' (2011-2012): The 35th anniversary series, ''Gokaiger's'' setting is a world where the first 34 Super Sentai all exist, with the Gokaigers inheriting the powers and ContinuityCameos galore. Started the trend of ''Metal Hero'' crossovers by doing so with ''Gavan'' (the first Metal Hero) in ''Gokaiger vs. Gavan'', which also introduces the team from ''Go-Busters''.

** ''Series/HikoninSentaiAkibaranger'' (2012-2013): Broadcast over two seasons, ''Akibaranger'' is an "unofficial" Sentai spin-off which takes place in a world where ''Super Sentai'' is but a fictional television franchise, but is distinct from the real world in that the ''Space Sheriff'' franchise is an anime franchise named ''Galactic Sheriff'' amongst other differences. The ''Akibaranger'' world itself is in its own little multiverse alongside the Delusion World where the Akibarangers fight their battles, the world of Saburo Hatte (the writer). Also, a LeaningOnTheFourthWall reference in ''[[Film/SpaceSheriffGavanVsTokusouSentaiDekaranger Gavan vs. Dekaranger]]'' could suggest that ''Akibaranger'' has influence on the prime ''Super Sentai'' universe itself.
* ''Series/ZyudenSentaiKyoryuger'' (2013-2014): Crossed over with ''Go-Busters'' (plus ''Zyuranger'' and ''Abaranger'') in ''Kyoryuger vs. Go-Busters'', which also introduces the team from ''ToQger''.

* ''Series/ResshaSentaiToQger'' (2014-2015): Crossed over with ''Kyoryuger'' in ''ToQger vs. Kyoryuger'', which also introduces the team from ''Ninninger''.
* ''Series/ShurikenSentaiNinninger'' (2015-2016): Uniquely, ''Ninninger'' hosted several guest appearances from legendary heroes in its televised run (including characters from ''Kakuranger'', ''Hurricaneger'', ''Goranger'', ''Magiranger'' and even ''Series/SekaiNinjaSenJiraiya''). Crossed over with ''ToQger'' in ''Ninninger vs. ToQger'', which also introduces the team from ''Zyuohger''.
* ''Series/DoubutsuSentaiZyuohger'' (2016-2017): Guest stars the team from ''Gokaiger'' in a TwoPartEpisode. Crossed over with ''Ninninger'' (plus TheCameo from the first 38 Super Sentai) in ''Zyuohger vs. Ninninger'', which also introduces the team from ''Kyoryuger''.

* ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' (2018-2019): Crossed over with ''Kyuranger'' in ''Lupinranger VS Patranger VS Kyuranger''.

* ''Series/MashinSentaiKiramager'' (2020-2021): Had a one-episode crossover with supporting characters from ''Gekiranger''
* ''Series/KikaiSentaiZenkaiger'' (2021-2022)

* ''Series/SpaceSheriffGavan'' (1982-1983): Introduces ''Sharivan'' in an EarlyBirdCameo.

* ''Series/SekaiNinjaSenJiraiya'' (1988-1989): Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.

* ''Series/TokusouExceedraft'' (1992-1993): SequelSeries to ''Solbrain''. Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.
* ''Series/TokusouRoboJanperson'' (1993-1994): Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.
* ''Series/BlueSWAT'' (1994-1995): Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.

* ''Series/BFighterKabuto'' (1996-1997): SequelSeries to ''Juukou B-Fighter''. Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.
* ''Series/BRoboKabutack'' (1997-1998): Teams-up with (toy versions) of Blue Beet (''Juukou B-Fighter'') and the eponymous hero of ''B-Fighter Kabuto'' in TheMovie. Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.

* ''Series/KidouKeijiJiban'' (1989-1990): Has a one-episode crossover with a supporting character from ''Jiraiya''. : Post-series, was incorporated into the ''Super Sentai/''Metal Heroes'' shared universe by a ContinuityCameo in ''Super Hero Taisen Z''.

The "Toei Universe" is the unofficial name for the SharedUniverse of ToeiCompany's {{tokusatsu}} franchises.

* ''Series/JikuuSenshiSpielban'' (1986-1987)

* ''Series/SekaiNinjaSenJiraiya'' (1988-1989)
* ''Series/KidouKeijiJiban'' (1989-1990): Has a one-episode crossover with a supporting character from ''Jiraiya''.

* ''Series/TokusouExceedraft'' (1992-1993): SequelSeries to ''Solbrain''.
* ''Series/TokusouRoboJanperson'' (1993-1994)
* ''Series/BlueSWAT'' (1994-1995)

* ''Series/BFighterKabuto'' (1996-1997): SequelSeries to ''Juukou B-Fighter''.
* ''Series/BRoboKabutack'' (1997-1998): Teams-up with (toy versions) of Blue Beet (''Juukou B-Fighter'') and the eponymous hero of ''B-Fighter Kabuto'' in TheMovie.

* ''[[Series/Kikaider Jinzo Ningen Kikaider]]'' & SequelSeries ''Kikaider 01'': Post-series, the eponymous heroes made TheCameo in ''Let's Go Kamen Rider''.

! ''Series/SpaceSquad''

** ''Series/PowerRangersDinoForceBrave'' (2017): A Korean SequelSeries to ''Kyoryuger'', translated into Japanese as ''Zyuden Sentai Kyoryuger Brave''. Features TheCameo by the team from ''Zyuohger'' in the finale.

* ''Series/KyojuuTokusouJuspion'' (1985-1986)

* ''Series/ChoujinkiMetalder'' (1987-1988)

* ''Series/JuukouBFighter'' (1995-1996): Crossed over with ''Blue SWAT'' and ''Janperson'' in the GrandFinale''.

! ''Series/SpaceSquad'': From 2012 onwards, ''Super Sentai'' and ''Metal Heroes'' are consistently treated as taking place in the same universe.
!! ''Franchise/SuperSentai'': Generally, individual Sentai have their own mythos and are generally independent continuity-wise, with {{crossover}}s taking place in TheMovie or other specials. However, televised crossovers have become more common in recent years, especially after ''Gokaiger''. Thus, the majority of Super Sentai are taken to take place in the same universe.

* ''Series/KamenRiderSkyrider'', officially known as simply ''Kamen Rider'', was originally conceived as a ContinuityReboot with a new Rider facing the Great Leader's Neo-Shocker. Instead of Tobei Tachibana, this Rider was assisted by a SuspiciouslySimilarSubstitute named Genjiro Tani. The series eventually reintroduces the first seven Riders as recurring characters.

** ''Series/KamenRiderDecade'': This series introduces TheMultiverse, with alternate universe counterparts of each of the first nine Heisei Rider series. From this point onwards, most Rider series, from the original to the present, are said to take place in the same world.
** ''Series/KamenRiderDouble'': This series introduces Foundation X, an evil organization which resurfaces to haunt later shows. ''Double'' itself provides a SequelHook to ''OOO'' by mentioning the Core Medal in its antepenultimate episode, as well as starting the tradition of the new Rider making an EarlyBirdCameo in TheMovie (which fits into Double's continuity).
** ''Series/KamenRiderOOO'': Provides a SequelHook to ''Fourze'' by having two supporting characters make TheCameo in the final episode, while TheMovie hosts the debut of Fourze himself.
** ''Series/KamenRiderFourze'': Provides a SequelHook to ''Wizard'' by having him make TheCameo out of his suit in the finale, while TheMovie hosts the debut of Wizard as a Rider.
** ''Series/KamenRiderWizard'': Closes with a TwoPartEpisode in which Wizard ([[Main/SixthRanger and Beast]]) are transported to an AlternateUniverse along with the first thirteen Heisei Rider protagonists and the new guy, Gaim.
** ''Series/KamenRiderGaim'':
** ''Series/KamenRiderDrive'': Features an EarlyBirdCameo by Ghost in TheMovie as well as the final two episodes.
** ''Series/KamenRiderGhost'': Features an EarlyBirdCameo by Ex-Aid in TheMovie, his dark counterpart Genm in the penultimate episode, and both Ex-Aid & Genm in the finale.
** ''Series/KamenRiderExAid'': Features an EarlyBirdCameo by Build in TheMovie and the penultimate episode.
** ''Series/KamenRiderBuild'': Features an EarlyBirdCameo by Zi-O in TheMovie.

! ''Series/SpaceSquad''
!! ''Franchise/SuperSentai''

* ''Series/TaiyouSentaiSunVulcan'' (1981-1982)

* ''Series/KaizokuSentaiGokaiger'' (2011-2012)
* ''Series/TokumeiSentaiGobusters'' (2012-2013): Crossed over with ''Gokaiger'' in ''Go-Busters vs. Gokaiger'', which also introduces the team from ''Kyoryuger''.

* ''Series/ShurikenSentaiNinninger'' (2015-2016): Crossed over with ''ToQger'' in ''Ninninger vs. ToQger'', which also introduces the team from ''Zyuohger''.
* ''Series/DoubutsuSentaiZyuohger'' (2016-2017): Crossed over with ''Ninninger'' (plus TheCameo from the first 38 Super Sentai) in ''Zyuohger vs. Ninninger'', which also introduces the team from ''Kyoryuger''.
* ''Series/UchuSentaiKyuranger'' (2017-2018)

* ''Series/FourWeekContinuousSuperSentaiStrongestBattle'' (2019)

! ''Franchise/SuperSentai''

** ''Series/PowerRangersDinoForceBrave''

* ''Series/MashinSentaiKiramager'' (2020-2021)

! ''Series/MetalHeroes''

** ''Series/KamenRiderDouble'':
** ''Series/KamenRiderOOO'':
** ''Series/KamenRiderFourze'':
** ''Series/KamenRiderWizard'':

** ''Series/KamenRiderDrive'':
** ''Series/KamenRiderGhost'':
** ''Series/KamenRiderExAid'':
** ''Series/KamenRiderBuild'':

* ''Series/SpaceSheriffGavan'' (1982-1983)
* ''Series/SpaceSheriffSharivan'' (1983-1984)
* ''Series/SpaceSheriffShaider'' (1984-1985)

* ''Series/KidouKeijiJiban'' (1989-1990)

* ''Series/TokkyuuShireiSolbrain'' (1991-1992)
* ''Series/TokusouExceedraft'' (1992-1993)

* ''Series/JuukouBFighter'' (1995-1996)
* ''Series/BFighterKabuto'' (1996-1997)
* ''Series/BRoboKabutack'' (1997-1998)
* ''Series/TetsuwanTanteiRobotack'' (1998-1999)

* ''Series/JAKQDengekitai'' (1977)

* ''Series/KousokuSentaiTurboranger'' (1989-1990)

* ''Series/NinjaSentaiKakuranger'' (1994-1995)
* ''Series/ChourikiSentaiOhranger'' (1995-1996)
* ''Series/GekisouSentaiCarranger'' (1996-1997)
* ''Series/DenjiSentaiMegaranger'' (1997-1998)
* ''Series/SeijuuSentaiGingaman'' (1998-1999)
* ''Series/KyukyuSentaiGoGoV'' (1999-2000)
* ''Series/MiraiSentaiTimeranger'' (2000-2001)
* ''Series/HyakujuuSentaiGaoranger'' (2001-2002)
* ''Series/NinpuuSentaiHurricaneger'' (2002-2003)
* ''Series/BakuryuuSentaiAbaranger'' (2003-2004)
* ''Series/TokusouSentaiDekaranger'' (2004-2005)
* ''Series/MahouSentaiMagiranger'' (2005-2006)
* ''Series/GoGoSentaiBoukenger'' (2006-2007)
* ''Series/JukenSentaiGekiranger'' (2007-2008)
* ''Series/EngineSentaiGoOnger'' (2008-2009)
* ''Series/SamuraiSentaiShinkenger'' (2009-2010)
* ''Series/TensouSentaiGoseiger'' (2010-2011)

* ''Series/TokumeiSentaiGobusters'' (2012-2013)
* ''Series/ZyudenSentaiKyoryuger'' (2013-2014)

* ''Series/ResshaSentaiToQger'' (2014-2015)
* ''Series/ShurikenSentaiNinninger'' (2015-2016)
* ''Series/DoubutsuSentaiZyuohger'' (2016-2017)

* ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' (2018-2019)

* ''Series/KishiryuSentaiRyusoulger'' (2019-2020)