If you're a Half-Life fan, you likely remember the first time a headcrab zombie lurched towards you, screaming for your blood. The years haven't done much to dull the freakish nature of these creatures — Damien Acosta imported it into WebGL, which provides both a great view of a classic video game enemy as well as a nice look at the power of a modern browser to run 3D models. Acosta notes that he had to configure the zombie's 19 different textures by hand. WebGL.com has a full tutorial on how to export and display Half-Life models in WebGL for the curious, or you can just go get up close and personal with the headcrab zombie — there's five different animations that you can view in 360-degrees. Now we just need to have a Gordon Freeman model (complete with crowbar) imported to hack the zombie to bits.