Like many others Aliens presented in the game, this boss has a weird and unique appearance. It has a typical Alien head, but with four small spiders limbs and notably, a large appendage of an egg-shape on its back where smaller balls containing facehugger surges that float around it like a shield. It is dark green in color, but when it receives enough damage (like many bosses in the game) its color will become orange.
First, this boss can pounce the player if she/he get close enough or simply use the smaller balls to protect itself or pounce. Second, the balls float aimlessly which allows the player to attack more easily, but if the player is to destroy a ball the Alien will produce more. In this fight the Alien will charge quickly at the the player causing a lot of damage.