Space aliens arrive on Earth with their giant shark Zigra. Of course, they plan on conquering our planet, so it's up to giant flying fire-breathing turtle Gamera to once again save the day. Director Noriaka Yuasa and writer Nisan Takahashi treat the story with admirable sincerity and toss in a valid and relevant anti-pollution message amid all the expected carnage. The cast likewise play their parts with praiseworthy conviction. The big climactic monster mash between Gamera and Zigra is staged with a reasonable amount of flair and hits the stirring spot, with the definite wacky highlight occurring when Gamera plays Zigra's back like a xylophone. The lovably rinky dink (far from) special effects -- rubbery monster suits, Tonka Toy miniatures -- possess a certain tacky charm. As a nice added bonus, we also get a hot mysterious Asian hitchhiker babe in a bikini. Plus you just gotta love the insanely catchy'n'groovy Gamera theme song! Both Akira Uehara's expansive widescreen cinematography and Shunsuke Kikuchi's robust score are up to par. A fun creature feature.

Possibly one of the earliest attempts at cinematic product placement.

Ahh, Gamera. Zigra. Giant Turtle. Giant Fish. Fire. Hypnosis beams. I guess the pleasure from these classic japanese monster films is watching a world, or mostly Japan, where giant mutant monsters exist, children know much much more than the adults, and cities are crushed as easily as cheesy models...oh wait, they are models. Anyway, UFO comes to Japan. The main brats Kenny and Helen (will someone get her a coke already!!) go on zany trying to prevent Zigra and his scantily clad henchwoman (VA-VOOM!) from trying to take over earth. The Zigra woman has the ability to hypnotize people with a simple snap and she must follow Zigra's orders to kill the children who mysteriously manage to survive again and again (duh). People yell AH!!, Gamera shows up, Zigra blows stuff up, a lot of paint...uh blood is spilled, I think there were dolphins, and lots of subplots to keep virtually anyone watching perplexed. Also, the diabolically catchy Gamera song is sung here. Add this all up for a huge laughs and best seen with Joel and da bots (HEY, THAT'S US!!).

Gamera vs Zigra is probably the worst Gamera film ever made. It has an old plot, bad monster action, and pretty stupid dialogue.

Basic plot involves an alien space ship led by an evil Sorcerous named Zigra. Then you pretty much predict what will happen, they try to take over the Earth and Gamera must save the Earth.

There are so many alien invading science fiction films that this one is nothing special. In fact it is really bad. The little kids in this film are so annoying that they make me want to see the other annoying kids in other Gamera Films.

Zigra is a pretty cool looking monster. However he moves around so slowly and really does not do anything exciting like Gamera's other foes. But he does look cool. I guess it is somewhat interesting how Zigra shoots a ray that messes with your chromosones. Also Zigra can talk in comprehendable English which is a first for a Gamera opponent. The fights between Zigra and Gamera are not really very good at all. There is so much standing around and roaring between Gamera and Zigra and it just gets boring.

There are other oddities in this film. The whole concept of Earth's water pressure making Zigra bigger made me scratch my head. Also why does Gamera have to play Zigra like a xylophone? And the song he plays is the Gamera theme song. Pretty lame part. Finally there is no way that Gamera could breathe fire under water and yet he does so in this film.

The dubbing is so bad in this film. I always prefer watching the Japanese films to the American dubbed film so it would be interesting to see the dialogue in Japanese to see how badly they screwed up the dubbing. But that would mean having to watch this film again and I do not want to do that.

So this one is pretty bad. Extremely boring and stupid at parts. Not a recommended Gamera film.