The Tyrannosaurus Rex (T. Rex) is a dinosaur found along the South Eastern coast of Mad Wood, around Death Lake, and (sometimes) along the North-Western coastline of Dreadful Hill. Its strong bites are capable of killing an unarmored player in a single hit.
They appear to have black claws and toenails, a lime-green underbelly, and a green over-top.
The Tyrannosaurus Rex (T. Rex) will run at the player, covering the ground slowly. When it gets to close, it will almost "lunge" at the player with open jaws.