From far away past

A bunch of young people are invited to a Caribbean cruise on a gangster's yacht, to distract the attention of the authorities. Unfortunately, a mutant cat which escaped from a test laboratory also gets on board, and kills most of the passengers.

An alien pod crash lands in the swamps, after which the local mosquitoes begin feeding on the alien corpses. This causes the mosquitoes to grow to massive sizes and develop an unquenchable hunger for blood. A mass swarm of these mutant insects attacks a Michigan national park in a brutal onslaught that kills the entire tourist population. The few unrelated survivors - two lovers, a meteorologist, a punk rock musician, and a gang of dangerous bank robbers on the run from police - must settle their differences and band together before nightfall, when the nocturnal mosquito swarm will return for more blood.

A Savage beast, grown to monstrous size and driven mad by toxic wastes that are poisoning the waters, spreads terror and death on a Maine countryside.

Ramon the alligator is flushed down the toilet as a baby and grows into a gargantuan monster by eating the corpses of laboratory animals who have undergone dubious hormone experiments, thus providing all the ecological and social subtext that one could possibly wish for, even if one doesn't normally go for films about giant alligators eating people left, right, and center--which is the inevitable and tragic result of Ramon's decision that the outside world looks rather more interesting than the sewers....

"You've never seen anything til you've seen the Sun through the rings of Saturn," exclaims Alex Rebar. Apparently, somehow this causes him to start melting and eating people, such as a nurse in the tightest fitting nurse's outfit ever, a nerdy fisherman, a horny old couple who simply can't keep their hands off each other in a car. To save the day comes Doctor Ted Nelson!

A rich actress who has gotten too old for leading roles employs a scientist who is working on a formula for eternal youth. The formula involves withdrawing certain fluids from the human brain. She takes the serum, but its unforseen side effects turn her into a murderous monster.

A pregnant woman reluctantly goes to an illegal abortion clinic, which also doubles as a brothel, only to have her aborted mutated fetus attack everyone at the clinic.

On planet Xarbia, an experimental life form, Subject 20, has been created by an elite group of researchers in hopes of preventing a galactic food crisis. However, when Subject 20 becomes deadly, the best troubleshooter in the Galaxy is called in to investigate.

When two brothers, Josh and Mike, go to a small southern town for a vacation, they find most of the residents either dead or missing. When Mike himself goes missing, Josh teams up with the local sheriff and an attractive school teacher to find him until Josh discovers that the whole town and most of its people have been infected by a form of toxic waste, and they have all turned into toxic vampires whom prowl the streets at night for human blood!

Horrifying shocker as a biological experiment goes haywire when meat-eating mutant roaches invade an island community, terrorizing a peaceful New England fishing village and hideously butchering its citizens.

Toxic waste dumping in a small Idaho town turns a young boy into horrible mutant monster. The town's police chief and a government scientist team up to stop the monster, which is quickly killing off the town's citizenry.

The Davies expect a baby, which turns out to be a monster with a nasty habit of killing when it's scared. And it's easily scared.

Investigating the mysterious deaths of a number of farm animals, vet Rack Hansen discovers that his town lies in the path of hoards of migrating tarantulas. Before he can take action, the streets are overrun by killer spiders, trapping a small group of towns folk in a remote hotel.

Two campers in the New Jersey woods have their outdoor fun interrupted by the arrival of a meteorite crashing nearby. They go to investigate the crater, but are suddenly attacked and devoured by alien parasites who have hitched a ride to Earth. After finishing off the campers, the hungry space monsters head for a nearby town, where they make their domain in the basement of an old house soon begin polishing off one hapless inhabitant after another. Four young teenagers, plus one pre-teen boy, try to find a way to stop the angry space monsters before they reproduce and literally eat humanity.

A virus from outer space transforms a bio-researcher into a blood thirsty monster. Chief researcher Dr. Vialini doesn't want the cops and public to know about this secret experiment. But he becomes lunch very soon. Its first victim is the lab's security guard. Suddenly, the guard's daughters get worried about him and go to the lab to retrieve their father. However, they have no clue what they're in store for. (UPDATED BY RYTHEBAYLORBEARSFAN89).

An epidemic of mutant monster babies sweeps America.

After someone is killed in the subterranean project called "Shadowzone," a NASA captain is called in to investigate. In the project, sleeping subjects are induced into a deep EDS state whereby they become portals to a parallel universe. Unfortunately this causes adverse reactions in the subject, and something gets through the portal, the consequence of which is an attrition problem.

Amanda's deathbed request to her son, John, was for him to destroy all the lab notes etc. from her last experiment. She also blurts out he had a brother. At the funeral John meets Melissa, who claims to be his mothers biggest fan. Together with some of John's friends they go to Amanda's house, but none are prepared for what they find there.