|This article is about a/an monster in Battle Fever J.|
The Ancient Fish Monster (コダイギョ怪人, Kodaigyo Kaijin) is the thirty-third of Egos' Monsters. He had a spear, could swim underwater, and was able to release explosive foam from his mouth. Ancient Fish Monster could also swim and had his weapons.
- Ancient Fish Monster were designed by character designer Muneo Kubo.
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