Board Thread:General Mega Man Discussion/@comment-948616-20131125210000/@comment-35095415-20190806122706

Actually it doesn't matter how Sigma is surprised that X/Z/Axl defeated him again. Every Sigma body is just a remote body or separated individual body with the same purpose to ruin the human world and revenge himself on X/Z. He can always return as long as Zero is alive.

What's important is that NGR and the leader Lumine is infected. The reason that the leader followed Sigma's will or think that NGE is superior than old reploid generation(just like Sigma thinking that reploid is superior than human in X1) is just "Lumine is infected". Sigma wins. He creates another "Sigma" in the new generation.