It's as if someone made up this monster on a dare. A giant sized turtle with big fangs, that flies by rotating around like a frisbee and shoots fire out of his leg holes. I've rarely even thought about such things without being under the influence of illegal substances.
So this silly turtle has actually starred in 9 DIFFERENT MOVIES since his 1965 debut, one as recent as 1998! That's more than the POLICE ACADEMY series, so you know they're doing something right.
The Mystery Science Theater look at GAMERA is one of the funniest movies they've ever heckled.