Several silly things happen during the final battle and I'd be remiss to not mention two of them. The first involves Hedorah's nasty habit of spitting caustic sludge, at one point Godzilla ducks the first then stands up to take another right in the face. Of course the second is the world famous scene where Godzilla uses his breath to fly along like a rocket. Often the lighting leaves much to be desired, though I am certain that was on purpose. The filmmakers were obviously trying to convey a brooding message about our planet's bleak future if the situation remained unchanged.
Monsters use oil tankers as beverage containers.
Pollution is bad, but 60's music is much, much worse. Monsters use factories as bongs. Telephone booths make excellent bomb shelters. Japanese women should leave Scottish fashions alone. Mud wrestling is much less interesting when you are the only one in the pit, rubber suit or not.