History Trivia / ZoneOfTheEnders

** Elena was voiced by Creator/RioNatsuki in the first game, but was replaced by Creator/YukoMizutani in ''The 2nd Runner''.

* TheOtherDarrin: Nohman has been portrayed by a different Japanese actor in all of his voiced appearances: Creator/MasashiEbara in the original game, Creator/JojiNakata in ''Dolores, i'', and Creator/JurotaKosugi in ''The 2nd Runner''.

* SameContentDifferentRating: Both ''[=ZoE=]'' games on the UsefulNotes/PlayStation2 received M for Mature ratings in the US, despite having precisely one bloody scene each between the two of them, no profanity, and no sexual content. When the HD Collection came out in the US, the version without the Metal Gear Rising demo received a somewhat-more-sane Teen rating. Similarly, the [=PS4=] and PC re-release of the second game, having no connection to ''Metal Gear'', has a T rating.
* {{Vaporware}}: The [[UsefulNotes/PlayStationVita PlayStation Vita]] version of the Zone of the Enders HD collection has been [[https://www.youtube.com/watch?v=XqVI4P6I3JQ announced]] at the Tokyo Game Show in 2011, and no word has been said regarding it since.

* ChildrenVoicingChildren: In the English version, 14-year-old Leo Stenbuck was voiced by the then 14-year-old Remy Le Boeuf. In a rare VA example of an actor aging with the character, two years passed both in-universe and out between the release of the first game and its sequel, ''The 2nd Runner'', that Le Boeuf, having gone through puberty and his voice deepened, was able to reprise his role as the now 16-year-old Leo. Interestingly enough, this is [[AvertedTrope averted]] ''[[AvertedTrope hard]]'' by both of his Japanese actors, Hiroki Shimowada and Creator/KenichiSuzumura, who was 24 and 28-years-old at the time of recording the role for their respective games.

* OldShame: Whilst not necessarily ashamed of the original game, the HD Collection's pre-release hype was all focused on ''The 2nd Runner'', with barely a word being said about the HD remastering of the original game; on top of that, the intro specially made for the HD Collection only focuses on the original game for roughly a minute and a half, with the remaining four minutes focusing on ''The 2nd Runner''.
** To make things even worse, the Hexa Drive Version 2.0 patch on the [=PlayStation=] 3 version only addresses the frame-rate issues of ''The 2nd Runner'' and enhanced its visual quality to 1080p; the original game in the same compilation only had some of its transparencies issues, and some of the frame-rate problems still persists. Granted the original ''Zone of the Ender''[='=]s frame-rate wasn't as botched as its sequel, but High Voltage Software only upscaled the games for 720p when these games were supposed to be enhanced for 1080p. Another remaster of ''The 2nd Runner'' was also developed for VR while the original ''Zone of the Enders'' gets left behind again.

* NoPortForYou: Although the ''M∀RS'' remaster of ''The 2nd Runner'' is available on [=PlayStation=] 4 and Windows, it was never ported to Xbox One or Xbox Series likely due to the HD Collection being backwards compatible with those systems and lacking any VR capabilities, which is one of the major selling points of the ''M∀RS'' remaster.

** To make things even worse, the Hexa Drive patch on the [=PlayStation=] 3 version only addresses the frame-rate issues of ''The 2nd Runner'' and enhanced its visual quality to 1080p; the original game is left untouched. Granted the original ''Zone of the Ender''[='=]s frame-rate wasn't as botched as its sequel, High-Voltage Studios only enhanced the games for 720p when these games were supposed to be in 1080p. Another remaster of ''2nd Runner'' was also developed for VR while the original ''Zone of the Enders'' gets left behind.
* PreviewPiggybacking: The first ''Zone of the Enders'' was widely known for its inclusion of a demo for the highly-anticipated ''VideoGame/MetalGearSolid2SonsOfLiberty'', which was the biggest reason many ''Metal Gear Solid'' fans bought the game. History repeated itself in 2012 with the HD Collection of the series, this time bundling a demo of ''VideoGame/MetalGearRisingRevengeance''.

* NoPortForYou: Although the ''M∀RS'' remaster of ''The 2nd Runner'' is available on [=PlayStation=] 4 and Windows, it was never ported to Xbox One or Xbox Series likely due to the ''HD Collection'' being backwards compatible with those systems and lacking any VR capabilities, which is one of the major selling points of the ''M∀RS'' remaster.

* [[MarthDebutedInSmashBros Z.O.E's Music Debuted in Metal Gear Online]]: Some music from ''Zone of the Enders''[='=] soundtracks was reused in [[Franchise/MetalGear Metal Gear Online]]; most notably "Vivid Transparency", [[https://www.youtube.com/watch?v=8N6_mGzAvm0 heard here.]] This has led to a surprisingly large number of people wondering where someone got the notion that a ''Metal Gear'' track is from this game about flying, sword-fighting robots.
** Some of the music also got reused in ''Franchise/Bemani'' games.

* PreviewPiggybacking: The first ''Zone of the Enders'' was widely known for its inclusion of the highly-anticipated ''VideoGame/MetalGearSolid2SonsOfLiberty'', which was the biggest reason many ''Metal Gear Solid'' fans bought the game. History repeated itself in 2012 with the HD Collection of the series, this time bundling a demo of ''VideoGame/MetalGearRisingRevengeance''.

* FanNickname: The [[CompilationRerelease HD Collection]] has coined "UsefulNotes/HighDefinition [[HumongousMecha Robot]] {{Action|Game}}" by the Zone of the Enders: The Unofficial Site as a play on ''The 2nd Runner''[='=]s TagLine.

* SameContentDifferentRating: Both ''[=ZoE=]'' games on the PlayStation 2 received M for Mature ratings in the US, despite having precisely one bloody scene each between the two of them, no profanity, and no sexual content. When the HD Collection came out in the US, the version without the Metal Gear Rising demo received a somewhat-more-sane Teen rating. Similarly, the [=PS4=] and PC re-release of the second game, having no connection to ''Metal Gear'', has a T rating.

* DevelopmentHell: The Enders Project, the ''Zone of the Enders: The 2nd Runner'' sequel has been put on hold and has yet to resume.