Stroyent Processing Creature

The Stroyent processing Creature is a large and excessively corpulent partially-stroggified creature, which is being used by the Strogg as a vital part in their Stroyent production operation at the Putrification Center.

The creature is force-fed with raw Stroyent, which is then somehow processed within its stomach and digestive system in order to become ready to use.

Destruction
During the later stages of the War against the Strogg, the stroggified space marine Matthew Kane encountered this creature and had to evade its dangerous metal claws or blade. He eventually defeated it by overfeeding the monster, causing its bowels to burst and blowing open a hole in the floor, allowing Kane to escape through the bottom toward the Waste Processing Facility.

Trivia

 * The sound that the creature makes when its stomach bursts is the same sound as Maledict from Doom 3 makes.
 * Despite its stomach and abdomen being blown wide open, the creature continues to move as if breathing after its defeat, suggesting that it still somehow lives, and that it may in fact be "repaired" by the Strogg to continue its unpleasant duty.
 * In the game's files, the creature is humorously referred to as "monster_fatty" or simply "fatty".