!The games
Main {{continuity}} for ''Original Generation'' is roughly as follows:

--> ''[[VideoGame/SuperRobotWarsGaiden Masou Kishin: The Lord of Elemental Part 1]]'' (UsefulNotes/NintendoDS[=/=]UsefulNotes/PlayStationPortable UpdatedRerelease)
--> ''Super Robot Wars Original Generations'' (Includes both ''Original Generation'' and ''Original Generation 2'')
---> ''EndlessFrontier'' [[note]]Occurs concurrently with ''Original Generation 2''[[/note]]
--> ''Super Robot Wars Original Generation Gaiden''
---> ''[[EndlessFrontier Endless Frontier EXCEED]]'' [[note]]Set sometime after ''Original Generation Gaiden'', but before the ''Second Original Generation''[[/note]]
---> ''[[AnotherCenturysEpisode Another Century's Episode R]]'' [[note]]Set sometime after ''Original Generation Gaiden'', but just as the ''Second Original Generation'' begins[[/note]]
--> ''Second Super Robot Wars Original Generation''
---> ''Super Robot Wars Original Generation: Dark Prison'' [[note]]Occurs simultaneously with, but ends shortly after the last scenario of the ''Second Original Generation''[[/note]]
--> ''Masou Kishin: The Lord of Elemental Part 2'' (UsefulNotes/NintendoDS[=/=]UsefulNotes/PlayStationPortable UpdatedRerelease) [[note]]''Part 2'' cannot occur between the ''EX'' scenarios and the Elemental Lords returning to the surface world in the ''Second Original Generation'', as WordOfGod states the secret Elemental Lords' attacks are only present as an unlockable treat to players, which should not occur until later[[/note]]
--> ''[[VideoGame/SuperRobotWarsGaiden Masou Kishin: Revelation of Evil God]]''
--> ''[[VideoGame/SuperRobotWarsGaiden Masou Kishin: Pride of Justice]]''
--> ''[[VideoGame/SuperRobotWarsGaiden Masou Kishin F: Coffin of the End]]''

!!Original Generations
* All pre-made ''Alpha'' protagonists [[DivergentCharacterEvolution become original characters]]. In the ''Alpha'' series, only [[Characters/SuperRobotWarsAlpha Kusuha Mizuha and Brookyln "Bullet" Luckfield]] were given unique personalities.
* The scene where [[Characters/MasouKishin Masaki Andoh]] uses the Cybuster and displays its power at Wake Island was pastiched from ''VideoGame/SuperRobotWars2''. Likewise, the scene with the first appearance of [[Characters/MasouKishin Lune Zoldark]] is a replica of a similar event from ''VideoGame/SuperRobotWars3''.
* In RealLife, the mechanical design of the Wildschwein is based off of an early mechanical design for the Huckebein. InUniverse, however, the Huckebein line was developed directly from the Wildschwein.
* Unlike ''[[VideoGame/SuperRobotWarsAlpha Super Robot Wars Alpha Gaiden]]'', the [[Characters/SuperRobotWarsAlpha Machinery Children]] in ''Original Generation 2'' are clones of [[Characters/SuperRobotWarsAlpha Arado Balanga]], not [[Characters/SuperRobotWarsAlpha Egret Fehu]].
* [[CombinationAttack Rampage Ghost]] can be used with the Rein Weiss Ritter for the first time in ''Original Generation 2''. In ''[[VideoGame/SuperRobotWarsCompact2 Super Robot Wars Impact]]'', the player has a choice of either reverting the Rein to normal or keep it as it is but lose the [[Manga/GetterRobo Shin Getter Robo]]; doing the latter, however, gains Rampage Ghost for the normal Weiss Ritter and Alt Eisen Riese, something ''Original Generation'' doesn't have.
* InUniverse, the Wild Falken and Wild Wurger are meant to be a GenerationXerox of the Weiss Ritter and Alt Eisen, respectively.
* The key differences between the [[Characters/SuperRobotWarsAdvance Shadow-Mirror]] dimension and the Original Generation universe are as follows:
** The "Elpis Incident" killed off the entire [[Characters/SuperRobotWarsAlpha Branstein family]]. Fortunately, the youngest son [[Characters/SuperRobotWarsAlpha Raidiese]] survived; however, he was killed during the "Vanishing Trooper Incident". This event also made it taboo among mechanical designers to ever manufacture another [[AMechByAnyOtherName Personal Trooper]] that resembles a Huckebein, which explains the proliferation of Gespensts within the Shadow-Mirror.
** The [[Characters/SuperRobotWarsOriginalGeneration Aerogaters]] did not arrive after the [[CivilWar Divine Crusaders War]]: it was the [[Characters/SuperRobotWarsClassic Inspectors]]. Similarly, Meteor-3 did not crash on the Earth; it's implied the radioactive mineral "Tronium" used to power the SRX was brought to Earth rather than being found within the meteor.
** [[spoiler:[[Characters/SuperRobotWarsCompact2 Excellen Browning]] died in the shuttle crash. Her parents took her body and resuscitated her through science and technology, rendering her into [[Characters/SuperRobotWarsAdvance Lemon Browning]]]]. Likewise, [[Characters/SuperRobotWarsAlpha Sanger Zonvolt]] was killed-in-action: [[spoiler:his body was taken by the Shadow-Mirror and rebuilt into the W-Numbers [[Characters/SuperRobotWarsOriginalGeneration W-15 "Wodan Ymir"]]]].

!!Original Generation Gaiden
* One of ploys of [[Characters/SuperRobotWarsReversal Duminuss]] is to use a dead character close to the protagonists in order to demoralize them. In its [[VideoGame/SuperRobotWarsReversal original game]], it was [[Anime/MobileFighterGGundam Master Asia]], who was resurrected via DG Cells until an overload of [[Manga/GetterRobo Getter Rays]] purged it from his body. In ''Original Generation'', [[spoiler:Lamia is used; rather than Machine Cells (the ''Original Generation'' {{Expy}} of DG Cells), she's reprogrammed in a way where it might not be possible to restore her (since she's the last of the Shadow-Mirror). [[Characters/SuperRobotWarsAdvance Axel Almer]], who's NotQuiteDead, reboots Lamia into her original programming via "Code: DTD"]].
* Instead of the [[Anime/MobileFighterGGundam Devil Gundam]] dispatching the [[Characters/SuperRobotWarsMX Cry Wolves]], it was a [[spoiler:[[Characters/SuperRobotWarsCompact2 Jetzt Regisseur]]. Subsequently, Foglia Est wasn't zombified and had to be given a MercyKill; instead, he pulls a HeroicSacrifice for his father Albero Est]].
* For ''Alpha Gaiden'' and this installment, [[Characters/MasouKishin Shu Shirakawa]] is the TrueFinalBoss. However, he blatantly states he serves "[[Characters/MasouKishin Shiva Volkruss]]" for this game instead of referring to it as "a being" for ''Alpha Gaiden''. Meanwhile, the final battle against him in ''Original Generation Gaiden'' is more of parallel to the same one from ''Super Robot Wars 3'' than ''Alpha Gaiden'' by summoning several automated Valsion units, with the title of the scenario being called "Armageddon", the same one from ''3''.
* Backstory in ''VideoGame/SuperRobotWarsCompact3'' loosely mentions another ''Heaven''-class Shura God in the Swordian Fortress. It still remains in slumber by the end of the game.

!!The Second Original Generation
* Back in ''VideoGame/SuperRobotWarsEX'', playing Masaki's route will lead to him and his allies encountering the Zamzeed under Shutendonias control, with vague mentions that [[Characters/MasouKishin Tytti Noorbuck]] has a history with the Elemental Lord. It isn't until ''The Lord of Elemental'' was released that this PlotHole was resolved; as LateArrivalSpoiler is in play for this game regarding ''Masou Kishin'', Tytti explicitly tells the surface dwellers the Zamzeed was previously used by their posthumous comrade [[Characters/MasouKishin Ricardo Silvera]]. The game also highlights on Tytti's conflicting emotions when [[Characters/MasouKishin Mio Sasuga]] is chosen to be Ricardo's successor.
* [[Characters/SuperRobotWarsOriginalGeneration Ing Egret]] is [[spoiler:not a Machinery Child: he's a clone of [[Characters/SuperRobotWarsAlpha Ingram Plisken]]. This is why [[Characters/SuperRobotWarsAlpha Euzeth Gozzo]] absorbs him in the final scenario of the ''Second Original Generation'', in hopes to take a sample of Ingram's DNA]]. Most people have inferred that Egret Fehu was working for [[spoiler:Euzeth]] all along, just like [[spoiler:[[Characters/SuperRobotWarsOriginalGeneration Nibhal Mubhal]]]] has been doing since the very beginning.
* Back in ''Super Hero Sakusen'' ("Super Hero Operations"), Euzeth used the power of Series/{{Ultraman}} to become Chojin Zest, an {{Expy}} of [[Series/UltramanTiga Evil Tiga]]. [[spoiler:In the ''Second Original Generation'', he does the same, but with the [[Characters/SuperRobotWarsAlpha Nashim Gan Eden]] instead of Ultraman, becoming the Adamatron]].
* The [[Characters/SuperRobotWarsClassic Zuvorg Alliance]] haven't directly fought the [[Characters/SuperRobotWarsAlpha Ze Balmary Empire]]: in fact, it's unclear if the latter even exists in ''Original Generation''. It's suggested the Zuvorg had scuffles on the edges of their systems with the Balmar's Neviim and their automated legions and such, referring to those things as the "wandering Balmar".
* The fate of [[Characters/SuperRobotWarsDestiny Perfectio]] remains the same, except [[spoiler:[[Characters/SuperRobotWarsDestiny Ventus]]]] is the one who takes the place of [[Anime/MobileSuitGundamWing Treize Kushrenada]]. Perfectio even reveals the memories of [[spoiler:[[Characters/SuperRobotWarsDestiny Felio Radcliffe]]]], which fills in some lingering {{Plot Hole}}s from ''VideoGame/SuperRobotWarsDestiny'', namely explaining the SplitPersonality of [[Characters/SuperRobotWarsDestiny Cliana Rimskaya]], since the ''Second Original Generation'' did not use the experimentation trauma from ''Destiny'' which caused the split, and where the missing Melior Esse comes from ([[spoiler:Liana being an incomplete Melior Esse]]). Perfectio also notes about [[{{Precursors}} an ancient civilization that created the Cross Gate]].
* The Medius Locus stops evolving after it reaches its second form because [[spoiler:[[Characters/SuperRobotWarsMX Eldy Mitte]]]] assassinates Albero Est, believing he is an obstacle for the AI-1's evolution. The Medius Locus is discarded afterwards; instead, its replacement is the [[spoiler:Model-X "Garberus", previously hinted at in ''VideoGame/SuperRobotWarsMX'', and the intended final prototype of the Tsentr Project]].
* Rather than use the [[{{Anime/Raideen}} the Star of La-Mu]] in ''MX'', Eldy uses the Crossgate beneath Antarctica to power up AI-1. [[Characters/SuperRobotWarsOriginalGeneration Duvan Org]] tries to do it too, but the Alles Geist can't handle its power. Since Eldy is simply using Duvan to buy time, the AI-1 consumes him once she doesn't need him anymore.
* The [[Characters/SuperRobotWarsOriginalGeneration Gaia Sabers]] don't seem to really mind Eldy, in general (until it turns out [[spoiler:Euzeth]] was counting on her to complete the AI-1 all along), and General Mitall Zapad was openly trying to stop her from working on it. Like ''MX'', [[spoiler:Eldy eventually kills Mitall for interferring with her plans]].
* The plan to include [[Characters/SuperRobotWarsOriginalGeneration Arteil Steinbeck]] in the story has been around since they were drawing up the story for ''Original Generation''. The writers even thought about adding him to ''Divine Wars'', ''Original Generations'' and ''The Inspectors''. Instead, Steinbeck is briefly mentioned in ''Original Generation Gaiden'' before appearing fully for the ''Second Original Generation''.
* The dialogue during the [[spoiler:"Elyon Yada Domar" attack of the Adamatron]] mentions the following, with an appropriate silhouette(s):
--> "This is the Black Hell" [[note]][[spoiler:Euzeth's Black Judecca]][[/note]]
--> "This is the Black Angel" [[note]][[spoiler:Astranagant]][[/note]]
--> "This is the Black Gun God" [[note]][[spoiler:Dis Astranagant]][[/note]]
--> "These are your ancient forebearers" [[note]][[spoiler:Nashim Gan Eden and Gebel Gan Eden]][[/note]]

!The Inspectors
* In the first episode, aside from the SRX that Beowulf destroys, two other machines are seen. According to WordOfGod, they are the Grungust and the Wildraubtier.
** The Huckebeins being ExiledFromContinuity in ''Divine Wars'' is continued to the point of self-parody: Bullet's intended Huckebein MK II and its mass-produced variants are replaced by a mass-produced Wildschwein (a mech that ''also'' resembles a Franchise/{{Gundam}}, though not as much as the Huckebein). Likewise, the "[=GuarBein=]" MK III Trombe belonging to [[Characters/SuperRobotWarsOriginalGeneration Ratsel Feinschmecker]] in episode nine is a mish-mash of the Huckebein MK III and his old Guarlion Custom, while [[Characters/SuperRobotWarsAlpha Ryoto Hikawa]] gets the '''[=EX=]'''bein, the in-universe prototype of the MK III.
* The {{Leitmotif}} "Fairy Dang-Sing" heard in episode ten is the first time since ''Alpha'' that a character's theme song is given official lyrics. Current [=SRW=] series producer Takenobu Terada wrote the lyrics, with the voice actresses for [[Characters/SuperRobotWarsOriginalGeneration Latooni Subbota and Shine Hausen]] singing it.
** In the same episode, the SuperRobot ''Gravilion'' used by [[Characters/SuperRobotWarsOriginalGeneration Archibald Grims]] is a case of WhatCouldHaveBeen: the animated staff states the Gravilion was originally going to be in the first game as an enemy unit for the Divine Crusaders, but this was dropped during development. Eventually, they decided to bring it into ''The Inspectors'' to showcase the Neo Divine Crusaders having access to exotic, {{Super Robot}}s other than the Valsion Custom in ''Divine Wars''.
* In episode nineteen, the voices of the [=RyuOhKi=] and [=KoOhKi=] are Masami Obari and Terada, respectively. This marks the first time the Choukijin are voiced.

!Tropes
* ActorAllusion: Of sorts; the voice actor for Russel Bagman has no other roles, because his primary job is "director photographer". In other words, he's the one in charge of the background.
* AscendedFanon: Latooni and use of the Wildraubtier. ''Original Generation'' wasn't very demanding in terms of "mandating" players to put which character in which unit, and due to her lack of plot focus, the game allows Latooni to be in any mecha without protest. However, savvy players will put two-and-two together and place her in the Wildraubtier the instant [[Characters/SuperRobotWarsAlpha Ryusei Date]] is done with it, due to it matching her high evasion stat and ranged combat style perfectly. This didn't go unnoticed by the developers, and in ''Original Generations'', the switch became mandatory. Even when she isn't using the Fairlion, the Wildraubtier remains her default unit.
* CastingGag: When Shouko Azuma turns into Fighter Emi, her helmet is shaped like a cat's head, likely a reference to Shouko's voice actress Creator/HiromiKonno and her role as Neko Musume from the 2007 version of ''Manga/GeGeGeNoKitaro''.
* ColbertBump: A meta-example - [[Characters/SuperRobotWarsClassic Lenonjayce Stallord and Patricia Hackman]] may have created some of the Gespenst's more famous attacks, but by the time ''Original Generation'' came around, the machine had fallen on hard times. When Kai Kitamura shows up, he gives the Gespenst a well-deserved bump back into the halls of awesome. InUniverse, he takes this further by designing the MK II M Custom in ''Original Generation Gaiden'' on his own (with some internal support from [[Characters/SuperRobotWarsClassic Gilliam Yeager]]) and promoting its benefits to the higher-ups.
* ContestWinnerCameo: Katina was the winner of a character design contest.
* FanNickname: See [[FanNickname/{{VideoGames N-S}} here]] for the entries
* IKnewIt
** Played with regarding Beowulf: fans deduced he was associated with the [[Characters/SuperRobotWarsCompact2 Einsts]] via FacialMarkings under his eyes in his character portrait for ''Original Generations'', similar to [[Characters/SuperRobotWarsCompact2 Einst Alfimi]]. The ''Endless Frontier'' drama CD doesn't explain why the MK III could regenerate a lost limb after Axel uses the Soulgain to destroy it, further fueling the speculation he is tied to the {{Eldritch Abomination}}s. The first five minutes of ''The Inspectors'' confirms this, but its validity in the games' {{Continuity}} has not been established yet.
** When the [[spoiler:Nashim Gan Eden]] fires a WaveMotionGun towards the moon just as the FinalBoss scenario is underway in the ''Second Original Generation'', many players believed this event was simply {{Foreshadowing}} ''VideoGame/SuperRobotWarsJudgment'' getting into ''Original Generation'' as the villainous Fury reside deep within the moon; even [[Characters/SuperRobotWarsAlpha3 Elma]] makes a quip about this in ''Dark Prison'', citing the blast "did not hit any man-made structures". Sure enough, they serve as the headlining antagonists in ''The Moon Dwellers''.
* NamesTheSame: Professor Kisaburo Azuma to [[Characters/CompatiHeroSeries Doctor Kisaburo]]
* TalkingToHimself
** Creator/ReiSakuma also voices [[Characters/MasouKishin Kuro]], one of Masaki's two {{Familiar}} cats.
** Creator/YumikoKobayashi voices Ariel, the same voice actress as Ryoto, except this time it isn't a CrossdressingVoice.
** Subverted with Keparoc Narmo; despite Creator/TetsuInada voicing him, he and Ratsel do not meet.
** Creator/KenyuHoriuchi voices Jonathan Kazahara and his son [[Characters/SuperRobotWarsClassic Irmgard Kazahara]] in ''The Inspectors''.
* TheOtherDarrin
** Creator/ShihoKawaragi as Eun Hyojin
** YuuAsakawa as Aguija in ''The Inspectors''
** Kousuke Okano as Lee Linjun in ''The Inspectors''
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