once the xenomorph is fully grown it ends up as a terrifying creature and it is incredibly hard to kill in the end ripley has to resort to blowing it out into space and then firing a rocket booster in its face and it is finally gone not dead just gone floating in space number nine predators from predator now the predator is the enemy in the NUMBER_TOKEN arnold schwarzenegger movie by the same name and this thing is ugly it's actually a genetically advanced alien hunter that uses cloaking technology to hunt people although its cloak isn't actually that good i mean you can still see it if you look closely in the original movie they don't actually succeed in killing the predator when it's wounded it sets off a self-destruct and blows itself up but they are pretty effective fighting machines especially when using their cloaking technology here is one taking out an entire jamaican voodoo posse whatever that is in predator NUMBER_TOKEN. now let's look at our final scary sci-fi enemy and this one is really frightening because it can take out humanity on a global scale all right number NUMBER_TOKEN the harvester aliens from independence day although the name isn't really mentioned that much in the first movie the aliens from independence day are called harvesters they fly their ships to unsuspecting planets and exterminate the entire population and then harvest all the resources available to power their ships and perfect their technology before moving on these aliens wore biomechanical suits and were hard to kill unless you're will smith
NO_SEGMENT_TOKEN