By completing the side job "I Fought the Law", you will eventually gain access to another side job called "The Hunt". During the mission, you break into the NCPD Lab. In one room featuring two white robotic arms, a BB Unit from the game Death Stranding can be found in a container which can be scanned. The function of the container is to simulate conditions in the uterus for the intended purpose of maintaining the life of the BB and detecting BT's.