zero before x1

well i can answer some of this, Zero was made origanally as another body for bass, he offered to put basses brain in the body but he refused. he was made to destroy megaman and rule earth. He supposedly elimanated the megaman cast, and then was sealed away to be fully completed after that test run. an occurence happened and wily died before bieng able to complete him. 30 years later x was opened and at that point robots malfunctioned called mavericks , every robot was origanated from x. A team including sigma and other hunters was ent out to destroy a red mavertick that had killed many of there kind. The maverick was ona rampage filled with evil energy that was left by duo for so long it became a virus in his system. He fought sigma sigma was Wooped(in my opinion) but zero was captured and sigma got the virus that slowly devolped through im as the sigma virus. Then Zero was wiped and started as a rookie hunter and eventually became a teamate with x. Thus the x1 series stats.

wait i thought sigma put the virus in zero cuz in mmx8 he says "you could have been like me" and x says "sigma tried to use zero to destroy the world" well along that line.

no zero sitll had the virus
but x was never his target. Just his base. His targets were wilys enemies. Light Megaman and all them. After the battle with sigma. He was erased of memory and reprogrammed for good.