10 Best Monsters From Standalone Sci-Fi Movies, Ranked

[هَـ-ђāŵĩ-ـَاوِي]

Science fiction movies have had countless monsters that have enthralled and terrified filmgoers for generations. While many of the most famous sci-fi monsters, like the Xenomorph or Predator, have continued to appear in sequels and ongoing franchises, other terrifying creatures left their mark in standalone movies. The one-and-done nature of these creatures made them all the more horrifying as the impact of their initial reveal was never lessened by subsequent appearances in later films.
Stephen Holland

https://screenrant.com/sci-fi-movies-best-monsters-standalone-ranked/