Thread:Sirkinsella98/@comment-33286111-20181020071621/@comment-33286111-20181020072024

Both Megaman wikis say original Sigma was possessed by the Maverick Virus.

I can show you the cutscenes of Megaman X4 showing the virus possesing Sigma.

I can also show you the Day of Sigma animation in Maverick Hunter X, showing he was not possessed in that continuity.