This film is close to the last of the quality Godzilla films where a budget is evident, and the future of the series became apparent. This film is a sequel to GHIDDORAH: THE THREE HEADED MONSTER and story elements went into the classic, DESTROY ALL MONSTERS. Goji completely went into his Earth defender mode in this story of alien domination against our planet.
This film is a great representation of the series and and Japan's desire and attitude for the times, coupled with our realization that everything is completely impossible. The best way to watch any Godzilla film is to believe that you are watching an alternate universe where all nations are equally powerful and those future dreams of the past did become possible.
For Godzilla fans, there is a lot of love about this film. There are interesting characters and many consider this Nick Adams' best film; which may not be true, but his co-star is BIGGER. For me, it is the images of the two monsters being lifted from the lake and hauled off to Planet X. The battle on the planet is now considered a classic moment too, as Goji does a victory dance(referred to as The Godzilla Shie). Godzilla always seemed to have a personality, but that dance cemented this notion, as he also demonstrates emotions in this story.
The fact that you are reading this review, demonstrates that you may have your own ideas and feelings about this film. This review is for the cinefile who believes in Godzilla and many of the other movies that came from Toho Studios. My recommendation is that you watch DESTROY ALL MONSTERS after this film, and then go play the two Godzilla video games that are now available.