Making its return in Dying Light 2 Stay Human is a Nightrunner tool called the UV Flashlight. This is considered one of the best defensive pieces of equipment in the game. One of the most dangerous enemies in the Dying Light series is called the Volatile. These creatures look and behave like the Reapers and the Strigoi as if they have leaped from the screens of Guillermo Del Toro's Blade 2 and The Strain respectively.