Monster has giant head and has long phallic like tounge that is going into girl's mouth. Black and white, looks like 1950's

An evil alien brain, bent on world domination, takes over the body of an atomic scientist, while a "good" alien brain inhabits the body of the scientist's dog and waits for an opportunity to defeat the evil brain.

Beware! The monster is fully erect! It's enormous! It's freaky! It's alive! But, these chicks definitely aren't scared of no monster cocks! They have their mouths open wide to swallow those bad boys, balls deep into their throats! Their pussies are spread open wide just waiting for the monster to enter!

These girls only like it huge and dark! Now that's what you call a monster cock!

A two-headed monster grabs a little girl's backpack, which leads to a transformation.

After a young woman is coerced into prostitution and her brother framed for murder by an organized crime syndicate, retribution in the form of an ape visits the mobsters.