As a virus, the Sigma Virus has the ability to infect and corrupt its targets. The Sigma Virus is quite diverse; not only does it cause Maverick behavior in Reploids, it also has the ability to make Mechaniloids go berserk. On the flipside, however, the Sigma Virus, upon infecting an already insane robot (i.e. Zero) would have the opposite effect. Also, on its own, it can drive Reploids to insanity, but under Sigma's direct control, it has also been shown to become an effective tool in subtly manipulating a Reploid's heart or even controlling them completely like puppets on a string. Once infected, the Sigma Virus is relentless and the infected cannot be easily returned to normalcy. Only when the host itself has died does the Sigma Virus die along with it. Therefore, the only option for mo