Hostile Aliens

Aliens are beings living in space. Some of them may be hostile to the human kind that could threaten the Earth and are portrayed as villains. This is the trope known as Hostile Aliens. They use advanced technology and destructive weapons of all kinds to conquer many planets.

Some aliens can surpass Earth by their intelligence and have a humanoid posture, while others can be terrifying predators resembling earth animals hunting on prey.

Exampes

 * Xenomorphs (Alien films)
 * Predator/Yautja/Hish-Qu-Ten (Predator films)
 * Ben 10
 * Vilgax
 * Zs'Skayr
 * Malware
 * Khyber
 * Teenage Mutant Ninja Turtles
 * Triceratons
 * Krang
 * Lord Dregg
 * Emperor Mavro (Power Rangers Super Megaforce)
 * Steven Universe
 * Jasper
 * Marvel
 * Thanos
 * Skrulls
 * Chitauri
 * DC
 * Darkseid
 * Atrocitus
 * Lord Dominator (Wander Over Yonder)