They also have their 'claws' up in what could be considered as a 'battle-ready position.' In Half-Life 2 and its episodes, the standard zombie walk hasĬomparison of head crabs left original right half life 2become a slow, awkward shamble, not unlike that of zombies in the movies.

In Half-Life and its expansions, standard zombies have a (mostly) human walk.

This could just be a graphical embellishment, however.

When a zombie lunges at an opponent in all games of the series, their arm appears to stretch out slightly when they swing.

In most cases, a Headcrab remains attached to its host until the zombie is destroyed, although in Half-Life 2, they will occasionally detach from the host if it is rendered immobile by its injuries. Occasionally, Headcrab zombies may survive losing both legs and their lower torso, and continue to crawl along using their arms.

The zombies indicates that the victim may be somewhat aware of their zombified state and obviously in an unimaginable amount of pain the entire time. In Half-Life 2, the muffled pleas and screams coming from Through some unknown biological process, the host's hands turn into long, skeletal claws and a massive hole appears in their chest lined with the hosts' ribs, becoming a makeshift 'mouth', with their ribs serving as teeth (zombies have been observed to feed by ripping chunks of flesh off of corpses and stuffing them into this maw) Removal of the Headcrab reveals that the host's head is bent abnormally upwards, their hair is matted with blood, and their face is pale, with their eyes shut and mouth open in a frozen scream.

Once a Head crab successfully attaches to a host, the Headcrab will assume control of all their motor functions, able to walk and attack with the host's arms and legs.

Hl2 fast zombie scream