The Dark Diligence Drone is an Ing possessed Diligence Class Drone. They are vulnerable to the Light Beam. Dark Diligence Drones only appear in one location: the Hazing Cliff in the Ing Hive region. Unlike most Darkling-possessed drones, they only follow a certain path, which makes them simple to destroy. Dark Diligence Drones expel energy as multiple sets of three around themselves both rapidly and alternating rotations instead of the one set of three slow-moving beams that the ordinary Diligence Class Drone have. This makes it impossible to roll under them in Morph Ball mode.