History Trivia / ResidentEvil4

* BadExportForYou: Due to Germany's [[MediaWatchdog youth protection laws]], the German version of the game is missing the "Assignment Ada" and "The Mercenaries" minigames. It's also ''brutally'' trimmed down in terms of violence, to the point that German gamers resorted to the loophole of importing the uncensored and German-speaking Austrian version instead.

* PortOverdosed: Despite its "Only for [[UsefulNotes/NintendoGameCube GameCube]]" label in its original release from 2005, the game has been ported to UsefulNotes/PlayStation2 (months later after the [=GameCube=] version), the N-Gage (2005), PC (2007, a PortingDisaster), UsefulNotes/{{Wii}} (2007), Zeebo (2009), Apple [=iOS=] (2009), UsefulNotes/PlayStation3 and UsefulNotes/Xbox360 (2011), Android (2013), PC again (2014, a PolishedPort), UsefulNotes/PlayStation4 and UsefulNotes/XboxOne (2016), UsefulNotes/NintendoSwitch (2019), [[UsefulNotes/OculusQuest Quest 2]] (2021), and remade for the [=PlayStation 4=], UsefulNotes/PlayStation5, UsefulNotes/XboxSeriesXAndS, and PC, a total of 17 ports and counting. It has seen releases across four generations of video game hardware and the only major platforms that never got a version of the game in its lifetime were the UsefulNotes/{{Xbox}} (which is probably due to Creator/{{Microsoft}} all but abandoning the system in 2005 in anticipation of the then-coming 360) and UsefulNotes/WiiU (which still ended up getting the ''Wii Edition'' ported to its version of the eShop, though the game still had to be played in Wii Mode).

* NoExportForYou: The UsefulNotes/NGage port was released only in Japan, the Zeebo port was released only in Brazil (as the console itself was only released there, despite being developed in America), and the Android version was released only in Korea outside of very few Samsung phones through its own store at the time of release.

The [[PressXToNotDie quick time events]] and over-the-shoulder camera angles used in ''RE'' games from ''4'' onward first appeared here. It alternated between the "classic" fixed cameras when exploring and the OTS camera when aiming. It also featured a mechanic where [[VideoGame/AlanWake shining a flashlight]] on the Hook Man enemy made it slow down and vulnerable to damage from firearms. The effect from this mechanic is still in the demo of the final version, despite not actually being used. Capcom decided to not go further with the Hooked Man gameplay test due to largely the same reasons the previous Castle Version was scrapped. The Hooked Man test is also not fondly remembered by at least one lead designer on it, due to not being very original.

* VoiceActingForTwo: Paul Mercier provides the voice of both Leon and the Merchant, so he's not only talking to but also buying and selling things to himself.

* PromotedFanBoy: Albert Marin, one of the lead developers behind the HD Project for ''resident evil 4: Ultimate HD Edition'' on Steam, was [[https://www.re4hd.com/?p=9693 hired]] by Creator/NightdiveStudios in 2023.

* RoleReprise: Sally Cahill as Ada Wong (returning 7 years after ''[=RE2=]'').

** Carolyn Lawrence is known as the voice of Sandy Cheeks of ''WesternAnimation/SpongebobSquarepants''. Here, she's in a gritty survival action horror game as Ashley Graham.
** Creator/RinoRomano is best known for his roles as Batman in ''WesternAnimation/TheBatman'' and Randy Hermandez from ''WesternAnimation/GodzillaTheSeries''. Here, he plays the scientist Luis Sera.