The Giant Alligator is a monster inthe Facility. It is briefly seen in its cube on the right side of the Sasquatch / Wendigo / Yeti's cube and the left side of Jack O'Lantern 's cube during the elevator scene.
When the System Purge is activated, there is an alligator sound heard in the second wave of monsters indicating that the giant alligator was released.
Appearance and Characteristics
As its name would suggest, the Giant Alligator is depicted as a normal alligator, but of abnormal size. It is briefly seen in its cube cell during the elevator scene when the camera pans out to reveal all of the cubes.
It is possible an alligator hand necklace summons it.
Inspiration
The Giant Alligator may have been inspired by the 1980 film Alligator and its 1991 sequel Alligator II: The Mutation along with other giant alligator films including Lake Placid and it's sequels.