modular_skyrat/modules/black_mesa/code/mobs/headcrab/headcrab.dm 
| /mob/living/basic/blackmesa/xen/headcrab | Headcrab (/mob/living/basic/blackmesa/xen/headcrab) Parasitic alien that jumps at targets and can zombify humans. |
|---|---|
| /mob/living/basic/blackmesa/xen/headcrab/fast | Fast Headcrab (/mob/living/basic/blackmesa/xen/headcrab/fast) A variant of the standard headcrab that moves significantly faster. |