!!The tropes:
* BadExportForYou: ''3''. Not necessarily because of the [[DifficultyByRegion inflated difficulty]] itself, but because the lowest difficulty setting in the overseas versions, Easy, includes EasyModeMockery that cuts out the last two stages of the game, while the Japanese version's equivalent difficulty level, Normal, lets you play to the very end. In other words, you're punished for playing a non-Japanese version. Also, the Japanese version's Easy difficulty, which ''still'' lets you complete the entire game and would've been the overseas versions' EasierThanEasy difficulty, is removed altogether.
* DivorcedInstallment: There was going to be a ''Streets of Rage 4'' on the UsefulNotes/SegaSaturn, but it was turned into the unrelated game ''Fighting Force'', and instead released on the UsefulNotes/PlayStation and UsefulNotes/{{Nintendo 64}}.
** The first game started its development as a spinoff of ''ESWAT: City Under Siege'' originally given the development title of ''DSWAT''. This explains the appearance of the police car from ''ESWAT'' when using the game's special move.
* FanTranslation: Of the Japanese version of ''3'', [[http://www.romhacking.net/translations/1375/ courtesy of Twilight Translations]]. It exists because of the difficulty changes mentioned above, the [[CutAndPasteTranslation radically-altered storyline]] in the overseas versions, and the mysterious {{Palette Swap}}ping of the player characters.
* NamesTheSame: Souther, the second boss from the first game, is not the guy from ''Manga/FistOfTheNorthStar''.
* ShownTheirWork: Skate's special move is an actual breakdancing move called the power windmill.
* UrbanLegendOfZelda: There was a rumor that locking ''Streets of Rage'' onto [[VideoGame/Sonic3AndKnuckles Sonic & Knuckles]] would allow you to play as Knuckles in ''[=SOR1=]''.
* WhatCouldHaveBeen: Pre-release screenshots show that ''Streets of Rage 3'' was originally going to feature a section where the heroes ride motorcycles.
** [[http://www.soronline.net/sor1_beta.htm Amongst other things]], it appeared that Adam and Axel were originally called "Wolf" and "Hawk" respectively.

* There was a comic book based on the second game written by Mark Millar.