One of the most notable aspects of the β model was their disproportionate left forearm, the flawed result of attempts to improve upon the α model's attack power. The flaws in genetic modification can also be seen in the tumours covering the creature's body. While this risked obscuring their vision, the β model saw an improvement in its nervous system and agility, allowing it to better avoid injury in combat. Despite this, their attack power was weaker than that of their progenitor.