When Overfiend is found and born in a human, he will remake the world to something more of his liking! Ripping the boundaries of the three universes (worlds) apart, it’s clear that little can stand in his way! While the other worlds are hoping to find the Overfiend to control the creation of this new World we call Earth. —IMDb
It is amazing that Legend of the Overfiend was released in american theaters as an NC-17 rated anime around the same time as Ghost in The Shell and Akira. Even more interesting is that because anime wasn't distinguished, Overfiend would have been just as influential, if not for being the granddaddy of tentacle porn.
I was wondering how long it would take for this to be added to the MUBI database; such an infamous and well-known anime, probably the reason someone didn't add it until now was to try and pretend it didn't exist. I was even considering submitting it just because its absence bugged me all this time.