purify

In a laboratory built underground to study robots that mimic living organisms, an energy facility goes out of control for unknown reasons. After that, the underground laboratory was shut down. In the closed laboratory, there was a cleaning robot "Zero" that kept working. Then a mysterious robot "Emma" appears and guides you to the deepest part where the energy facility is located. Become "Zero" and go to the deepest point where the energy facility is located. This 2D action RPG features intense battles against runaway robots that mimic living organisms and security robots. Combat with weapons unique to cleaning robots.