Headcrab

Description
Headcrabs are a free-to-play Xen team in Headcrab Infection. They are a parasite that controls their victims by latching onto their head and manipulating the brain. During gameplay, when a player chooses to be a Headcrab, they will spawn as this. Their overall stats are low, but their abilities are promising.

Abilities

 * They are able to control a player to become a Zombie if they can land on or even just touch a Human's head.
 * They are able to reach high heights and can travel easily by jumping.

Usually, the most common method used to control a human is to be able to land on their head using the Headcrabs' jumping ability. After controlling a host, they can wait for a specific amount of time to turn into a Gonome.

Controls

 * Space / Esc - Jump
 * WASD / Up and Down Arrows - Movement

Trivia

 * They are the only Xen species, or only team that is able to evolve into other variations of itself.
 * They were the 1st Xen creature added to the game.
 * You can gain upgrade points by successfully controlling hosts.