I'm not the huge fan of BOC that my pal Chris is (wow, two posts in a row mentioning him, what'd he do to deserve that? poor guy) but I do like a lot of their songs. singing about Godzilla will do that. they sang about all sorts of cool stuff, and always had a bit of a sense of humor about it as well.
this was their second really big hit, from sometime in the early 80s. as much as I love "Godzilla" it was never a huge chart hit for the band. this one was. and the band was smart enough to get some of the more gullible religious types to think they were satanic, thus getting even more kids to listen to the song.