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Monga concept art
Species Flying squirrel-like creature
Planned for Gamera vs. Guiron
Concept history MongaSpace Gyaos

Monga (モンガ) is an unused kaiju originally intended to appear in the 1969 Gamera film, Gamera vs. Guiron.


Monga's Japanese name (モンガ) comes from that of the Japanese flying squirrel, the momonga (モモンガ).


Monga is a monster that would have had dark-blue fur, membranes between his legs, ox-like horns, and a mace-like object on the end of its tail.


Showa era

Gamera vs. Guiron (original draft)

One of the indigenous lifeforms of Terra, Monga would have likely filled a role similar to Space Gyaos' in the final film.


Much like Varan, Monga's sole known ability was that it would be able to glide around using the membranes between its limbs.



  • Monga was replaced by Space Gyaos in the finished film, likely for budgetary reasons. Daiei chose to simply repaint the Gyaos suit from Gamera vs. Gyaos rather than create an entirely new suit for Monga.
  • Monga is one of two unmade kaiju to be based on flying squirrels, with the other one being Nikkatsu Corporation's Momonra. It is unknown if this is more than just a coincidence, as Momonra's debut film was going to be released in 1966, 3 years before the release of Gamera vs. Guiron.


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