- Big-Lipped Alligator Moment: Gamera playing his theme on Zigra like a xylophone. The Cast Showoff, anyone?
- Complete Monster: While most of the monsters are mindless rampaging beasts, this is not the case with Zigra. Arriving on Earth to conquer it and use humanity as a food source, Zigra has his agent Lora Lee cause a massive earthquake that destroys all of Tokyo, just to prove how powerful they are. Zigra also sends Lora Lee to kill two children who have seen the inside of their spaceship and know what they look like. Zigra also uses his ship's lasers to destroy a ship that could have picked up the children, and some fighter aircraft that attacks his spaceship. After his Villainous Breakdown, Zigra decides to forgo any plans of merely conquering Earth, instead opting to eradicate all life on it.
- Ensemble Dark Horse: Zigra is often regarded as one of the better monsters of the Showa Gamera films, with its shark like design and for having a surprisingly devious and clever plan to take over the world in particular being praised.
- Evil Is Sexy: Lora Lee
- Ham and Cheese: Whoever voiced Zigra in the English release clearly had a blast at doing the character.
- Narm: Lora Lee chasing two toddlers all over like a The Benny Hill Show sketch, making her look incredibly incompetent.
- Sequelitis: For many viewers, this is where the Showa Gamera films go from fun bad to boring bad, with many critiquing that the plot (thats followed the same structure since Gamera vs. Gyaos) has wore out its welcome and that the characters, child, adult and villainous are more annoying and incompetent than ever before.
- What Do You Mean, It Wasn't Made on Drugs?: Zero continuity, the aforementioned 'Gamera plays Zigra like a xylophone' scene, the completely pointless appearance by an old hermit prompting a discussion about time-travel, the famous 'who will get the fish' bit...
YMMV / Gamera vs. Zigra