Who's Max?
Max is the pet-dog of the Dr.Seuss character: The Grinch he in the original tale was take as the reindeer for the Grinch and brought against his will to help this latter ruin Christmas for the Whos.
But here he will be not that funny dog, his now a killer creature that will hunt you along his owner...
Max will hunt you on the caves and surface, he will stalk you and he will try to kill you.