->''"Humans survive... by doing... what they have to do."''
-->-- '''Yuki''', espousing some "wisdom" to Professor Gondo.

The twenty-first ''Franchise/{{Godzilla}}'' film and the sixth in the Heisei series. Toho decided Godzilla’s next foe would be a new creation, [=SpaceGodzilla=]. The film starts Godzilla's development as an {{Antihero}} and continues the plotline of his adopted son. Titled "''Gojira tai SupēsuGojira''" in Japan.

Originally, [[Film/GodzillaVsMechaGodzillaII MechaGodzilla]] was set to return and [[EnemyMine fight alongside Godzilla]], but it was decided three were enough for the movie. So he was replaced by [=MOGUERA=], a redesign of a {{Mecha}} from ''Film/TheMysterians''. While the film did well at the box office, the film was viewed somewhat more negatively. The plot was considered lumpy, [=LittleGodzilla=] resembled Minya for too many people’s liking, and there were odd editing choices. For instance, Godzilla was originally going to try to free his son from his crystal prison before going after [=SpaceGodzilla=], but that scene was inexplicably cut. [=SpaceGodzilla=] himself was well-received, though, and the movie has some fun monster action.

While Miki Saegusa is mulling over whether to join Project T (a plan to control Godzilla telepathically), the [[Film/GodzillaAndMothraTheBattleForEarth Cosmos]] warn her of [=SpaceGodzilla=]’s plan to kill Godzilla and TakeOverTheWorld. His crystals have destroyed a [=NASA=] space station and an altercation between him and [=MOGUERA=] in the asteroid belt results in the damage of the mech. Meanwhile, Miki and the Project T team set up shop on Birth Island, where the sweet-natured [=LittleGodzilla=] and his stepfather are currently residing. After a brief rivalry with Akira Yuki, [[Film/GodzillaVsBiollante who holds a grudge against Godzilla for killing Gondo]], the probe is implanted and Project T is going smoothly. But then [=SpaceGodzilla=] appears.

In a one-sided battle, Godzilla is overwhelmed by his adversary and is helpless to stop his son from being imprisoned. Godzilla follows [=SpaceGodzilla=] to Fukuoka where he sets up base. Can Godzilla defeat his twin from space, and would the human heroes align with him to stop him…

!! This film contains examples of

* AxeCrazy:
** Yuki may qualify. He thinks that a bullet shot into Godzilla's armpit is going to kill him. Then again, he's been alone on that island for quite a while and Godzilla is a monster who has survived ''swimming in molten fucking lava!'' He says it has a blood coagulant in it, so basically he wants to give Godzilla a heart attack, and of course it doesn't do jack.
** The eponymous [=SpaceGodzilla=] is also extremely AxCrazy.
* AwesomeMcCoolname: "Godzilla Vs [=SpaceGodzilla=]". You have to admit that's awesome.
* BloodierAndGorier: The manga version at least.
* BoyishShortHair: Miki sports a shorter haircut than previous films and the following one.
* CombatPragmatist: [=SpaceGodzilla=] notices Godzilla is trying to protect his son, so he resorts to flying around taking shots at him knowing Godzilla will take the hits for him.
* CurbstompBattle: Things weren't look well for [=MOGUERA=] if there were electronic malfunctions even before the battle begins.
* FunWithAcronyms: [=MOGUERA=] (Mobile Operational Godzilla Expert Robot Aero-Type).
* GentleGiant: [=LittleGodzilla=] is nice to everyone. He even approached [=SpaceGodzilla=] with friendly curiosity.
* ImpaledWithExtremePrejudice: Godzilla runs through [=SpaceGodzilla=] this way. Brutally with his own weaponized crystal in the manga.
* ImprovisedWeapon: In the manga, Godzilla tends to use [=SpaceGodzilla=]'s crystals, one time catching one ''with his mouth and shoots his atomic breath to spread the beam''.
* JerkWithAHeartOfGold: Akira Yuki, who is driven to kill Godzilla and isn't the most sociable of people. However, he rescues one of the protagonists from a deadly spider and is part of the raid in freeing Miki. After Godzilla loses Little Godzilla in a crystal prison Yuki puts his revenge plan on hold since 'he's had enough of a bad day.'
* KarmicDeath: [=SpaceGodzilla=]'s death is similar to Biollante's. Godzilla shoots a supercharged atomic blast at the weakened Spacegodzilla, turning the evil monster into G-Cells.
** In the manga: [[HoistByHisOwnPetard Godzilla impales SpaceGodzilla with the latter's own weaponized crystal.]]
* KickTheDog: [=SpaceGodzilla=] attacking and imprisoning [=LittleGodzilla=].
* KnightOfCerebus: Once [=SpaceGodzilla=] shows up, it gets a lot darker.
* LickedByTheDog: [=LittleGodzilla=] is attached to gruff and revenge-seeking Akira Yuki. Despite plotting to kill his Dad, Akira seems to return the affection.
* MindOverMatter: While captured and in the middle of a gun fight, Miki lifts the table she's strapped to in order for the hero to shoot at the legs. Miki laters says this was her first time trying it.
* NiceJobBreakingItHero: It's possible that Mothra is the one that took Godzilla's cells into space, allowing [=SpaceGodzilla=] to be born, in which case, Nice Job, Mothra. Biollante also seems to have something to do with it, due to some physical similarities between her and [=SpaceGodzilla=], namely, the extra teeth.
** [=SpaceGodzilla's=] design is actually a heavily edited version of [=SuperGodzilla=] from VideoGame/SuperGodzilla.
* NiceJobFixingItVillain: Really, Godzilla probably wouldn't have even bothered with [=SpaceGodzilla=] is he hadn't attack [=LittleGodzilla=]
* PapaWolf: Godzilla protecting his son from [=SpaceGodzilla=]'s attacks and later trying to kill [=SpaceGodzilla=] to free [=LittleGodzilla=].
* ShipTease: Miki and Koji.
* ShooOutTheClowns: The film becomes more dramatic after [=SpaceGodzilla=] traps Little Godzilla. It's only after Spacegodzilla's death that the movie returns to a lighter mood.
* SpaceBattle: [=SpaceGodzilla=] and [=MOGUERA=] in the Asteroid Belt. It would have been impressive, if not for the asteroids looking like floating sacks of potatoes.
* SpaceIsNoisy: [=SpaceGodzilla=] roars in space. Well, what'd you expect for him to do other than fly in space?
* SpaceWhaleAesop: A strange message about how humans polluting space might create another creature like [=SpaceGodzilla=] is tacked on to the end of the film. Never mind that neither theory about [=SpaceGodzilla=]'s creation involved humans...
* StockFootage: Reused the naval battle from Biollante, though they really didn't want to.
** You can actually see the new shots they wanted to use in this [[http://www.youtube.com/watch?v=BN42gU6NZ44 unused footage compilation reel]]
* SympathyForTheDevil: This is where Miki's infamous defense of Godzilla becomes most pronounced.
* ThisWasHisTrueForm: Spacegodzilla can change into a weird spikey crystal ball to fly in space with his body being just a small portion of it and his legs disappearing. When you recall that he is the result of G-cells fusing with alien crystal lifeforms you realize that this was what it looked like before G-cells fused with it. You are seeing the alien itself when Spacegodzilla transforms into his flying form.
* TooDumbToLive: Yuki is even dumber in the manga as he tries to use the remaining strain of the ANB against Godzilla ''while he's facing [=SpaceGodzilla=]''. Godzilla ends up noticing him and ends up with a crystal in the knee.
* WhatTheHellHero: Once Yuki is in control of the Moguera, he deviates from G-Force's plan to fight [=SpaceGodzilla=] so that he can attack Godzilla, throwing a wrench into a time-sensitive plan to evacuate Fukuoka, no doubt sentencing hundreds of innocent people to death.
* {{Yakuza}}: There is an entire subplot where Miki gets kidnapped by the Yakuza so they could control Godzilla them for power.