Facehuggers are first found in Afreeka, during the initial stages of the infestation. Most facehuggers are found loose and roaming the map; others spawn from Alien Eggs and, later in the game, from Broodworms that spew out a constant barrage of the parasites. Facehuggers can also spawn from AlienSpawner1.
Facehuggers are extremely mobile - they can jump, climb walls and ceilings, just as a fully-grown Alien can. Facehuggers, being smaller and weaker creatures, can easily be dealt with by the player.
A facehugger attacks its prey (usually a villager, terrorist or Bro) either by dropping down on it or by lunging, after which it attaches itself to the face of its victim and impregnates them with an Alien embryo. Once a facehugger has attached itself to its victim, it is almost guaranteed death as it is very hard to remove. To remove one after it has attached itself, it must be killed by an explosion, however there may be undiscovered ways to remove one. After a successful attack, the victim falls dead, after which the corpse bursts and produces a fully-grown Alien.
- The Broniversal Soldier can use his special ability to revive fallen facehuggers to fight by his side, but not fully-grown Aliens.
- Broforce's facehuggers are loosely based on the parasite of the same name from the Alien film series. Differences include:
- The in-game facehuggers bear only six legs and a shorter tail, whereas the facehuggers in the films bear eight legs and a much longer prehensile tail.
- When compared to the films' facehuggers, the facehuggers in-game are much larger in relation to the size of a human character, covering most of the head rather than just the face.
- The impregnation stage is almost immediate, as is the resulting Alien's growth to full size, whereas in the films, it takes a considerable amount of time during and in-between stages.