Headcrab, Half-Life
The name alone is perturbing enough, but then you see the headcrab in action. Its meek body scuttling across the floor, leaping toward your cranium at every opportunity it gets. It’s so gross! Part crab, roughly the size of a pumpkin, and the same fleshy color as a human scalp, this grotesque parasitoid doesn’t just want a little bite. It wants your whole body, actually, as it commandeers your motor functions when it bites down on your skull. Whatever consciousness you had will soon be replaced because the headcrab, should it latch on, turns you into a damn zombie. And once the zombification is done, your stomach cavity will be swapped out with a gaping, sharp-toothed mouth and your fingers will grow into lengthy talons. Yuck. —Levi Winslow
