Cy-Bugs are like a virus. They don't know they're in a game. All they know is eat, kill, multiply! Without a beacon to stop them, they'll consume Sugar Rush! But do you think they'll stop there? (Fix-It Felix: Yes?!) WRONG! Viruses do not stop! Once those Cy-Bugs finish off Sugar Rush, they'll invade every other game until this arcade is nothing but a smoking husk of forgotten dreams.
~ Sergeant Calhoun about the Cy-Bugs.
Hostile Species are entire Races of Evil Creatures and/or Entities common in many genres. Some later redeem themselves and some individuals within a species may differ in beliefs. Sometimes Hostile Species with hierarchical structures, multiple races with common goals and/or aggressive tendencies can be overlapped with Organizations.

They are also difficult to defeat if despite being hostile, dangerous, Sadists, Xenophobes and/or Genocidal they are capable of having Children or making Families; thus killing a Hostile Species capable of reproducing naturally would still be considered genocide.

  • ONLY ADD RACES, SPECIES AND/OR GROUPS OF ENTITIES to this category. Individual villains never count. Also, note that they cannot be Pure Evil because groups do not have a moral agency (even in the rare cases where all individual members meet the criteria) and a species' morals (especially sapient species) often change over generations for better or worse.
  • Since Hostile Species are referred to as Groups, should a particular species all want it apply Imperialists instead of Hegemony.

This category has its own template infobox.

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