* DawsonCasting: All of the main actors were roughly the same age as their characters except for Ryohei Kobayashi (Fumiya, the youngest of the siblings), who was actually the second oldest in the main cast next to Toshiya Fuji (Gaku) and six years older than his on-screen twin/real-life wife Keiko Hayase (Remi).
* DevelopmentHell: A Region One DVD set was teased by Bruno from [=MMPRToys=] for Creator/ShoutFactory in 2019 as their second licensed pre-''[[Series/KyoryuSentaiZyuranger Zyuranger]]'' release. For a while said set had yet to see the light of day, due to Hasbro's acquisition of the ''Franchise/PowerRangers'' franchise and the international rights to ''Super Sentai'' as a result. It was finally announced for a September 2022 release, presumably due to having the distribution rights renegotiated.
* FranchiseKiller: Despite the rumor that it was ''Series/ChourikiSentaiOhranger'' that nearly killed off Sentai, [[http://tokusatsunetwork.com/2016/06/fact-checked-did-carranger-save-sentai/ this season is the one that nearly caused the franchise to end]], due to low ratings AND very low toy sales (likely because seemingly ''all'' the toys for this series were badly designed and shoddily made - one Five Blaster toy yellowed despite being put in storage for a year after having been opened ''once'')[[note]]although other shows have had lower ratings since then, it's worth noting that in those cases, said ratings were usually offset by toy sales; ''Ohranger'', which had ratings of 4.452% in comparison to ''Fiveman''[='=]s ratings of 6.49%, had some of the best toy sales in the entire franchise, selling ''15.9 billion'' yen; although we don't know the toy sales numbers for all the pre-''Jetman'' series, it can be assumed that they were lower than those of ''Series/MiraiSentaiTimeranger'' or ''Series/ShurikenSentaiNinninger'', which sold 4 billion yen and 5.4 billion yen worth of toys respectively, if only due to the fact that Toei didn't consider canceling Sentai after those shows[[/note]]. There were reports of Japanese toy stores having scores of unsold Max Magma toys. Fortunately subverted when Toei decided to give the franchise one more season - and [[Series/ChoujinSentaiJetman the next series]] ended up saving the franchise.
* TheOtherDarrin: Eiichi Onoda succeeded Nobuo Tanaka as the show's narrator.
* PropRecycling: The helmet used for this series' [=GingaPink=] was taken from Immortality Bouma from the prior series, ''Series/KousokuSentaiTurboranger''. The aliens' species and homeworld was given a similar name to the Bouma as a DevelopmentGag.
* RomanceOnTheSet: Ryohei Kobayashi and Keiko Hayase, who played the [[CastIncest twins Fumiya and Remi]], dated on the show and later married in real life.
* WhatCouldHaveBeen
** Ryohei Kobayashi was given the role of Fumiya as compensation after he auditioned for an unmade follow-up to ''Series/KamenRiderBlackRX''.
** There was a plan that Ken ([=FiveBlue=]) would not be blood related to the other Fiveman, and in fact was meant to be revealed as ''[[BigBad Empress Meadow]]''[='=]s son instead and the actors were even informed of this, but it was ultimately dropped because producers at Toei found the plot too dark for the show.
** Producer Takeyuki Suzuki objected to the introduction of the Five-kun Dolls.
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