He wanted the power, but not much reason is directly given to the player as to why. So, it's up to them to interpret the reasons. Like just in the last few pages alone, every view of his character has been pretty wildly different, which in my mind is a serious plus.
Interpretation is fine and dandy, but everything you said, while backed by Foxy's psych-up, is still interpretations drawing on information we don't have.
Not exactly. Even in DMC3 the amulet is described as a gift from his mother, the only thing he has left to remember her by. Additionally, as I said earlier, the manga outright describes his feelings the night Eva was murdered and both his and Dante's lives were destroyed, and Dante even brings up the fact that siding with Demons is tantamount to siding with her killers, something Vergil doesn't exactly take kindly too.
Sure, the amulet was a gift form his mother, but Vergil doesn't care about that - he sees the amulet as the key to getting the Force Edge, it's a means to an end. He hasn't shown any emotional attachment to the jewelry.
And I have the manga too, but I don't remember anything being overtly mentioned or shown about how Vergil felt about that night. It seemed to mostly focus on his fear of being wherever the hell he was. There wasn't actually a lot of speech in there, unless I'm forgetting something.
Not exactly. Vergil refuses to use guns because he doesn't consider them weapons of a "true warrior". Whether that's just a matter of showing physical strength or because of principle, is up to the viewer.
Well, if it's principle, it still has nothing to do with honor.
The difference is, OVergil has no qualms about throwing aside anyone who gets in his way, while NVergil legitimately believes what he was doing was the best thing for everyone. The first's morality is based almost completely around his might makes right philosophy, while NVergil conducted himself up to VD as though he was justified in everything for the sake of the greater good.
See, now that's a sociopath's point of view - you're actually sorta condoning classic Vergil's sociopathy because "Well, people got hurt because might makes right," it's something sociopaths actually believe, that their way is the best way and you get what's coming to you if you don't follow along. Conversely, you're outwardly criticizing mVergil for the exact same thing - that he believes what he's doing is right. Both characters feel their actions are justified, both characters are fine with how they use and sacrifice people for their goal (power, or the right to rule.
You think so? Yamato is capable of cutting through dimensions. Do you really think Kalina Ann would be able to block it if he was legitimately trying to kill Lady?
A "dimension" is slightly different than tangible material like Kalina Ann, Rebellion, or any door that impeded his progress through Temen-ni-gru. If he truly could slash anything he wants, he should not have had as many obstacles as he did inside the tower. This is very much a "gameplay and cutscene not meshing" sorta thing.
Plus, both Dante and Vergil were tired from their fight.
Arkham was a ticking time bomb. In the manga, he makes it very clear that Vergil would be cast aside the second he was no longer useful.
So...? Did Vergil know that? I don't think he did; it'd be pretty stupid to say so. I don't remember seeing him say that out loud in the manga. It would also just end up a slight convenience that killing him after he outlived his usefulness just happened to also prevent baldy from screwing him over.
Plus, is the manga really something to consider as canon, considering how contradictory it is to the game?
EDIT: AAAAAAAAAAAAAAACH! This is what happens when my browser hasn't updated and I am sick and tired and not thinking to check how the thread has progressed. Sorry @LordOfDarkness :'(