it's more or less the most disgusting movie in existence. Props for such creative and graphic splattering. The chemical experiments are generally the grossest. All of them are pretty bad. I can't understand why leading cockroaches into a girl's vagina for them to burrow upward and be surgically removed from the face is gonna help build better weapons.
Men Behind the Sun is the same thing, but significantly shorter and generally better
https://archive.org/details/MenBehindTheSunbqnftyYWW4E