[[quoteright:200:http://static.tvtropes.org/pmwiki/pub/images/MZ23,_Cover_Shot.jpg]]

->''"Operator 7-G, please respond!"''

Teenager Shogo Yahagi is a motorcycle nut with few cares in the world; he and his friends do little more than ride around and have fun. This all changes when one of his older friends leaves a mysterious, incredibly-advanced motorcycle called the Bahamut in Shogo's possession. The Bahamut is far more than it seems, and a mysterious cabal of [[TheMenInBlack men in black]] seems willing to do anything to get it back. Soon, Shogo discovers some of the secrets hidden in the Bahamut, and it leads him to even more -- secrets that will completely change his understanding of the world he lives in.

Now if only he and his friends can survive his discoveries...

Released between 1985 and 1989, ''Megazone 23'' is historically signficant for being one of the very first {{OVA}}s and also was one of the first anime to extensively interweave music with the plot. The story itself was a mindbender at the time, and is a forerunner of such later American works as ''Film/TheMatrix'' and ''Film/DarkCity''. Since then, the plot twists and the character types have become standard in anime, almost cliche in some instances, but as a certified classic it is still worth seeing.

The original American distributions of ''Megazone 23'' were anything but impressive. It was briefly released in North America by Harmony Gold as ''{{Robotech}} the Movie''. Carl Macek crudely spliced in footage from ''{{Robotech}}'' to force a linkage between the two shows, and of course the [[{{Macekre}} usual Macek dub script]] was conjured up out of nothing to replace the original dialogue. Macek and Harmony Gold also produced a dub of ''Part 2'' (with a different cast and set of character names), which was only released in Japan as an aid for teaching English. (It also used footage of the alternate ending for ''Part 1'' that was produced for the Robotech movie as a prologue). Creator/StreamlinePictures later produced a straight dub of Part 1 with the same cast as the International Part 2 (but Japanese character names), but couldn't release Parts 2 and 3 due to their financial problems and inevitable shutdown. Later, Creator/MangaEntertainment released an un-butchered version of Part 3 for the UK on VHS, but the result, reportedly, was still horrendous.

For decades, only bootleg [[FanSub fansubs]] of the original show were available in America, but it was rereleased with a new English dub in the summer of 2004 by Creator/ADVFilms.

''Megazone 23'' was revived in 2007 with a Playstation 3 RPG game, ''Blue Garland''; the game takes place in an AlternateContinuity that diverges after ''Part I'', and revolves around Hiroto Takanaka, [[LegacyCharacter the son of heroine Yui]].

Not to be confused with [[FanFic/UndocumentedFeatures MegaZone]].[[note]]Brian Bikowicz, the co-author of ''UndocumentedFeatures'', legally changed his name to [=MegaZone=] because he was such a big fan of this anime.[[/note]]
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!!This show provides examples of:
* AdamAndEvePlot: Eve's interest in Shogo turns out to be in determining whether his love for Yui, and to a lesser extent his concern for his friends, might make them all candidates for repopulating earth after A.D.A.M. destroys the Megazone.
* AllBikersAreHellsAngels: Averted in the beginning of Part I, where Shogo and his friends are completely harmless enthusiasts (though Shogo likes to pull off crazy stunts), but played straight in Part II with the bosozoku gang Shogo and Yui join up with.
* AllThereInTheManual: There is an unbelievable amount of information out there that isn't even hinted at in the released episodes. For instance, the identity and history of the enemy, why the deserted levels of Megazone 23 where B.D.'s forces hid from Bahamut existed, et cetera. This is to be expected since the first OVA was a compilation of animation from a scrapped TV series.
* AlmostLethalWeapons
* ArtShift:
** Most obvious between Parts I([[SuperDimensionFortressMacross Haruhiko Mikimoto]]'s character designs) and II ([[{{Anime/Kite}} Yasuomi]] [[MezzoForte Umetsu]]'s), which feature the same characters, but with mostly more natural hair colours.
** YouGottaHaveBlueHair: Mostly averted in Part II; Yui's hair changes from green to brown, and the only characters with unusual hair colors are the biker gang (dyed), Eve (VirtualGhost)... and B.D., who went from brunette to white-haired.
** RetGone: Eve's hair color changed to be exclusively platinum blond in Part III, ''VideoGame/SuperRobotWars'' and Aoi Garland, despite the latter two portrayals being set in Parts 1 and 2. This is even retconned within the series when [[spoiler:The original Megazone 23's Eve is visited by the real Eve and Eiji]], and even they have platinum blond hair!
* BlandNameProduct: A fairly notable aversion - brand names are used very regularly. When's the last time you saw a for real Coca-Cola can in an anime, honestly?
* BloodierAndGorier[=/=]HotterAndSexier: While the first OVA was hardly kid friendly, featuring its fair share of nudity and some scenes of gore, the second OVA absolutely '''demolished''' the first in those areas. The second OVA was filled to the brim with graphic depictions of extreme gore and bloodshed that would make Creator/QuentinTarantino orgasm, and speaking of orgasms, the women in the second OVA were so sexed up that one couldn't go a full five minutes without a slipped nipple. And that isn't even getting into Yui and Shogo's completely-gratuitous sex scene and the sequence of Yui and the female gang members in the shower.
** This is because ''Part II'' is the work of [[{{Anime/Kite}} Yasuomi]] [[MezzoForte Umetsu]] and Ichiro [[MacrossMissileMassacre Itano]].
* BolivianArmyEnding: How Part II ends for B.D. and what's left of the Army
* BurgerFool: Shogo's day job.
* CastingCouch: Aspiring dancer Yui isn't above resorting to this for the sake of her career. Shogo isn't above [[MundaneUtility using his Garland to "rescue" her before anything happens]].
* ChaseScene
* CityInABottle
* CombatTentacles
* CombiningMecha: The Hargans, similar to the original MobileSuitGundam's Core Fighter, are formed from an ordinary-looking motorbike docking with a set of limbs carried in a transport truck.
* CoolBike: The Garlands
** Though on the whole they're not actually very good bikes. They can go very fast, but it's all brute thrust [[MasterOfNone and they're extremely bulky and unmaneuverable due carrying all their robot parts around with them]], unlike the aforementioned Hargans. Amusingly demonstrated by Shogo causing several traffic accidents as he tries to drive it the same way as a normal bike.
* CyberPunk
* DecoyGetaway: "Who? ''WHO'' did you say? [[CulturalTranslation Johnny... Winters]]? [[{{Narm}} So sorry, I DON'T KNOW THE GUY!]] [Laughs]" (From the Harmony Gold dub of ''Part II''.)
** Even in the new dub, the line's pretty narmy. "Huh? Yahagi? Sorry, pal, ''WRONG ASSHOLE!''"
* DidNotDoTheBloodyResearch - the video game "Hard On". *snicker*
* DisneyDeath
* DistressedDamsel
* DownerEnding: To Part 1 -- [[spoiler:after StormingTheCastle, Shogo is soundly defeated by B.D., who decides that he's NotWorthKilling - or thinks he's dead but doesn't even care enough to check.]]
* TheDragon: B.D.
* DwindlingParty: The bikers (mostly decoys) are shown being gradually picked off as Shogo approaches Bahamut in Part 2.
* EarthThatWas: The Megazone ships were sent away to preserve humanity while giving a ruined Earth time to heal.
* EvilDiva: Arguably, Eve.
* EvilMinions
* EyeScream: The aliens in ''Part II'' love doing this to people. The very first guy they kill gets his eye popped straight out of his head and it gets better/worse from there.
* FaceHeelTurn: [[spoiler: Shogo became Bishop Won Dai]]
* {{Fanservice}}: Shogo and Yui's sex scene in ''Part I'' serves only to provide eye candy while Shogo delivers a big load of ExpoSpeak in voiceover. Conversely, their sex scene in ''Part II'' is completely gratuitous, just like the violence.
* FanservicePack: Inverted in ''Part II'' -- Yui's still cute and all, but she's got absolutely ''nothing'' on the Yui in ''Part I''.
* FighterLaunchingSequence
* FountainOfYouth: In part II, B.D. looks at least ten years younger than his part I self. And is also more buff.
** This is taken to a extreme with [[spoiler:the real Eve Tokimatsuri]], who is found having not aged a single day... in the entire length of the series, which takes place over a thousand years.
* GenerationShip
* {{Gorn}}: ''Part II'' is pure {{Gorn}}.
* GovernmentConspiracy
* GratuitousEnglish: the video game "Hard On."
** Shogo's "Sex Wax" jacket from Part 2.
* HeelFaceTurn: [[spoiler: In Part 3, Eiji switches from E=X to Sion's side]]
* HumanityOnTrial: The effective purpose of Eve's talk with Shogo about life, the universe, and everything in Part II.
** [[spoiler:The real Eve takes Eiji to the crash site of the escape pod from Part II, walking past where the city's umbilical system is destroying the replanted forests.]]
* IKnowMortalKombat: Intentionally done by the Orange corporation in ''Part III''.
* ImperialStormtrooperMarksmanshipAcademy: When Shogo first drives off with the Garland, the enemies get a nice tight grouping of bullets on everything ''to the side of'' him.
* ImportantHaircut: Yui gets one, along with trying to TakeALevelInBadass, while trying to rekindle her relationship with Shogo in ''Part II''.
* ItsPersonal: In ''Part II'', since [[spoiler:B.D. framed Shogo for Tomomi's murder.]]
* KnifeNut: Eiji Takanaka's fighting style while in a Garland
* KillTheCutie [[spoiler: Tomomi ]] in Part I
* LampshadeHanging: Some of the members of Orange Amusements talk about Eve's age, joking slightly about how, if there is a real Eve, she'd be as old as the Bishop Won Dai, a centuries-old spiritual leader. [[spoiler: She's several centuries OLDER, and is still around the same physical age as Eiji himself!]]
* LeftForDead: At the end of ''Part I'', [[spoiler:B.D. gives Shogo the beating of his life - and doesn't even bother to see if he's alive before he leaves.]]
* LudicrousGibs: See CombatTentacles.
* MacrossMissileMassacre: used by the Army in Part I against the alien threat with dubious results.
* MagicalSecurityCam
* MegaCorp: E=X and Orange are the main rival corporations in Part 3
* MiniMecha: The Maneuver Slaves.
* TheMasquerade
* TheMenInBlack
* MyNaymeIs: The title was once commonly transliterated as Megazone Two-Three, and may have originated with the Robotech fandom. Carl Macek was known to use this title when discussing the film. The actual title is an indirect reference to the 23 districts of Tokyo.
** The title of the series in rendered in Katakana as "Megazon Tsu Suri", So "Megazone Two Three" IS the intended pronunciation. Has nothing to do with fandom or Macek (thank God).
* NewEden: What Earth became after humanity left for 500 years.
* OntologicalMystery
* PhlebotinumRebel: Shogo Yahagi and the Bahamut.
* RealMenWearPink: The crazy badass bikers ''love'' bubblegum pop star Eve.
* RoadBlock
* {{Roboteching}}
* RobotGirl
* {{Shonen}}
* ShoutOut / CulturalCrossReference
** The ''WesternAnimation/SilverHawks'' and ''WesternAnimation/ThunderCats'' pinball machines in ''Part II''[[note]]In reference to other shows {{AIC}}, ''Megazone'''s animation studio, was also working on at that time[[/note]].
** The movie the kids go to in Part I? ''Film/StreetsOfFire''.
** A prominent billboard that appears in the first bike chase scene in Part I has "Creator/DavidBowie" written on it.
** In Part II, albums by Jeff Beck and Van Halen's (specifically 1984) can be seen as Yui's old room is destroyed.
** In the computer we have a line written: Franchise/{{Godzilla}}
** In The accident crash we see [[Series/KamenRider an white Suzuki T-20 and a pilot with an red scarf]].
** Here's one that isn't cross-cultural: The cops in the car that Shogo kicks are [[Franchise/LupinIII Lupin and Jigen]] lookalikes.
** Mai's dufflebag? Branded with a ''Anime/TheDaggerOfKamui'' logo.
** The passenger in the cab Shogo cuts off is wearing a hat that looks like it came straight off the head of a ''DrSlump'' cast member.
** ''Megazone 23'' Part III even has a shout out to itself, in that the first four "employees" in a employee listing Eiji studies are Shogo's three friends, and a fourth whose surname, Miyasato, is the same as Miyasato Kumi, the singing voice of Eve.
* SparklingStreamOfTears
* VideoGame/SuperRobotWars: Appears in ''VideoGame/{{Super Robot Wars D|estiny}}''.
** FixFic: This version follows the plot of Parts I and II (putting the "Trash" gang [[PutOnABus On A Bus]]), until Eve sends the entire Megazone to another dimension to keep ADAM from destroying everything.
* StuffBlowingUp
* TimeSkip: Between Parts 2 and 3.
** And to a much lesser extent, between parts 1 and 2, with a gap of only about six months.
* TookALevelInBadass: Shogo starts out as a hapless twentysomething nobody. Then he gets a superbike that turns into a robot. ''Then'' he becomes and outlaw and starts hobnobbing with dangerous lunatics.
** Seems to be a rule of thumb with people given [[spoiler:that particular Garland]], in that Eiji Takanaka defeats the E=X driving it.
* TotallyRadical: Done deliberately in the new dub, mainly because it fits completely with the faux-80s setting.
* TransformingMecha
* UnexplainedRecovery: At the end of Part 2, the bike gang members who were previously shown getting knocked off their bikes, shot up, and otherwise (apparently) dispatched by the baddies in various ways show up almost entirely intact with a few bandages on them. No explanation is provided.
* VanillaEdition: The 1999 R1 DVD release of the Streamline Pictures dub by Image Entertainment. Slightly better than some of their other releases, since it actually has the Japanese dialogue and decent subtitles, but still qualifies for this trope nonetheless. The 2004 ADV Films DVD is a little more fleshed out.
* VirtualCelebrity: Eve Tokimatsuri. Who turns out to be a program based on the appearance of a child genius who worked on the original Megazone program. [[spoiler:This is pivotal when Eve is the only person alive with administrator rights on the civic computer system.]]
* WaveMotionGun / ChestBlaster: One of the enemy Garlands has this in Part 3 [[spoiler: and it is also something that Eiji may AttackItsWeakPoint ForMassiveDamage]]
* YourSizeMayVary: A lot of scenes show a huge discrepancy between the Maneuver Slaves' bike and robot modes. The first time we ever see one it's almost as big as the transport truck it comes out of.
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