Pig Monster

The Pigosaurus is a minor monster encountered in the elevator in the Lethal Specimen Facility.

Description
The Pigosaurus appears as a huge, stocky monster with a misshapen body that has odd ridges on its back and 3 finger-like legs visible. It has an angular head and a wide eye that faces upwards. Its mouth has many pointed, yellowed teeth and a frog-like tongue.

Behavior
This porcine mutant is only heard when the player enters the room it's in on the elevator. When the player reaches the beginning of the infection on floor 2, the Pigosaurus will squeal loudly and charge towards Troy. If the Pigosaurus catches up to them, it'll consume and kill Troy, resetting the player back to after the acid pit.

If the player shuts the door on the Pigosaurus, it'll smash into the door and pass out. It can be safely climbed on top of, but that isn't necessary to continue.

Trivia

 * The encounter with it can be completely skipped by just shutting the door after it opens and never entering the room it's in.
 * Its prehensile tongue, teeth color, and body color and shape bear similarity to the Swimming Mouth Monster, mean that what it may.