Zero was originally a virus created by Lord Wily and World Three in an attempt to bring down the Internet by infecting the NetNavis that inhabited it. Dr. Yuichiro Hikari interrupts before ProtoMan deletes Zero. Hikari indicates that Zero can be made into a regular Navi. After this, Hikari installs a program that eviscerates his virus status and allows him to thrive at the Science Labs. Zero then can explore the internet under supervision of said officials.