What I don't understand is how it just wasn't in his personality.
Inafune never said "personality", he said it wasn't in his
profile. As in, establishing Zero's background, he never once intended Zero to do such a thing. And you know, absolutely everything in the games says that is the case. He was sealed by Wily for the future, the only thing he did prior was being constructed.
Prove me wrong!
They all died from old age.
Everyone knows that Rush killed all the characters from classic Megaman.
Nobody died, nobody killed.
1UP: A lot of fans hoped that MM9 would bridge the story gap between the classic series and the X series, where it's hinted that the original Mega Man and his friends had all been killed at some point in the distant past. Do you ever intend to tell that story?
HT: This seems like a rumor that goes around in certain circles, but it is not official. Certainly, the two series are set in different time periods, but they share the same spectacular world. There might be a bridge for the chronological gap someday, but I don't think it's time yet. http://en.wikipedia.org/wiki/Maverick_(Mega_Man) info here seem to contradict this idea. Read the origins. Not saying Wikipedia is 100% accurate, but ... I have heard the "Patient Zero" theory has been discredited. Inafune's answer seems to be in conflict with this. Not saying it's not what he intnded, but ... there's a missing piece of the puzzle there.
Wikipedia is filled with bullshit by people who neither understand RZOCW nor can read obvious disclaimers that says certain info is not canon.
Someone who maybe Wily put the Sigma Virus inside Zero. That much is FACT. Just as much fact as that the Virus transferred to Sigma. RZCOW says nothing else, "Zero is the first infected with the Sigma Virus."
RZOCW's Three Keys Sigma Virus section is non-canonical vagueness, nothing concrete, nothing that retcons, nothing factual. Only the statements that align with the canon sources are to be considered.
That section says the following:
The
true essence of Sigma Virus is the circuit of mental suffering that Right put in X. Nothing is said of the origin of Sigma Virus, only such a vague thing as an essence (The essence of Sigma Virus is what? Control of all Repliroids! To awaken Zero!) RZOCW dodges the matter of the essence of Sigma Virus and continues to describe the function of the circuit of mental suffering as it should function in all Repliroids to avoid bias between human and Repliroids (robots) in a society where both coexist.
It then continues to say that Zero is the first infected, and events led to Zero, who was created by Wily to be a complete evil Repliroid, becoming good despite his infection. Which is the introduction to the point that Zero unknowingly spread the Virus from within him during missions, which leads to his admission in the research institute.
Seriously, NOTHING in RZOCW disagrees with Wily creating the Virus to put inside of Zero to awaken him to his true evil self. Why would Wily not have made it when Perfect Memories says that Wily maybe the one that did it?! Why bother making up convoluted stories about evil personality programs and circuits magically merging when X8 Sigma (made after RZOCW!) says that the Sigma Virus that infected him came from Zero's DNA?! If X5 didn't slap you in the face with it yet, Zero Virus and everything, you're talking about the same Virus that brought Wily back to life!
For completion's sake, here's the quote I mentioned from Perfect Memories:
Exactly what kinds of secrets are sleeping in Zero's past?
Zero has almost no memory of the past. However, sometimes he seems to see a person resembling Dr. Wily in his dreams. And it's also said that Zero was born with the Sigma Virus already inside of him. His creation is it actually to battle with whom? One would never think it was for justice, however...
X: He was made by Dr. Right. Will the time for his fated battle with Zero come?
Dr. Wily: The one who put the Sigma Virus in Zero is, perhaps him......Probably made up Zero's story as they went along. On X4 he thought "Oh hey let's make him psycho, even though he was a nice guy in X1-X3."
Except he was psycho in X2's alternate scenario and was already said to be made by Wily back then.
That's what I'm guessing. That flashback is also in conflict with Mav Hunter X (Sigma's eye scars).
If Zero inflicted Sigma's eye scars, half his face would be purple. Sigma got repaired, plain and simple. Not to mention, it's his own choice that he's keeping those scars. He's died over a dozen times, his face too got remade 'again and again'. It's simply symbolism that relates to the two people that led to Sigma's philosophy of evolution and rebellion, X and Zero. His tattered pride, the Virus, Limitless Potential and justice.