You're walking through a dark hallway and the only thing you can hear is the beeping on your radar and the muffled sound of your own footsteps through your helmet. You get distracted by how quiet it is, until... you hear a loud creak come from the hallway behind you. You look back, nothing. You continue on your way. A few minutes pass as you make a few turns. You're getting closer to your target: a busted vent that was somehow blown open, not by explosives, but by some animal. The claw marks on the walls prove that much. You take a left turn and you hear the creaking again. You look back once more and still see nothing. Until... a light flickers on and off for a few seconds when all of a sudden a shadowy figure appears in the strobe. Your heart leaps. But it disappears just as quickly. You continue on for a few steps, still staring at the halo of the light. and when you turn to face the objective your face goes pale in horror. your gaze is met with the eyes of a giant beast. It's fangs bearing, its face long and insect-like, a speared tail just behind its head. Ribbs showing through its emerald-green skin. It's hungry.