Gamera vs. Gyaos is a 1967 film about a monster that emerges from a volcano and fights Gamera.
- Directed by Noriaki Yuasa. Written by Nisan Takahashi.
- Army officer: Dr. Aoki, as a zoologist what would you say the beast is? Would you say it's a bird, or is it a reptile?
- Dr. Aoki: I would like to say there isn't any recorded history of it...let's just call it a monster.
- Kojiro Hongo — Foreman Shiro Tsutsumi
- Kichijiro Ueda — Village Headman
- Reiko Kasahara — Eiichi's sister
- Naoyuki Abe — Eiichi