AV-X0 Type Zero is a fictional prototype Labor from Kidou Keisatsu Patlabor, serving as an early and highly advanced experimental model in the series’ mecha-focused world. It is associated with the development of next-generation Labor technology and appears as a significant machine rather than a human character. The AV-X0 Type Zero represents the kind of cutting-edge engineering and military/police experimentation that underpins the series’ conflict between technology, law enforcement, and public safety.