Those pesky Xenomorphs, can’t take two steps without one trying to bite your face off. It’s a tough life for the Marines, and this new developer diary from Sega details just how tough it can be.

In this latest video several members of the Gearbox team discuss the battle between the Xenomorphs and the Marines, and how they are trying to make the aliens believable. There are also a few teasers regarding new types of aliens that were never seen in the films.

Aliens: Colonial Marines is due out February 12 for PlayStation 3, Xbox 360, and PC. You can check out the video below.