so i have a few questions, after finishing the game
- at what point did Dante learn V was vergil's human half? Did V tell him right when he showed up at Devil May Cry to hire dante? Dante clearly knew that urizen was somehow vergil at the first battle in May, so he probably also knew that V was also vergil too right?
- what was Vergil's goal/plan? he took Nero's arm/Yamato to be able to split himself into human/demon halves. Urizen planted the Qlipoth tree to eat the fruit and become more powerful -- but what did he plan for V to do? after Urizen is defeated in mission 17, V goes up to him and merges with Urizen, revealing a revitalized Vergil. Was that really Vergil's plan all along - to re-merge himself and become healthy again?
- After vergil beats dante the first time and teleports away, what is vergil doing? Just chilling on top of the tree, aside from waiting for Dante to come?
- Did the brothers really want to kill each other in Mission 19?
- Nero just spontaneously regenerated his arm and gained demonic powers because he felt like he had to stop his dad/uncle from killing each other after that phone call with Kyrie?
- Why are Dante/Vergil stuck in the underworld? Vergil still has Yamato to connect the demonic/human worlds.
1-Dante knew that Urizen was Vergil.
Check the cutscene when they meet in dante's office,near the end you can see a closeup to V's mouth and he is about to say the name 'Vergil'.
This is reinforced by dante's line inside the tree, 'i guess i'll get to see it with my own eyes,if it really is you..'
Nero only knows him by the name of Urizen,which is a made-up name based on a wordplay of V's phrase 'YourReason'.
I think Dante figure it out before the fight with super Urizen because Dante tells him 'you lost the little of humanity you had left',although it feels ambiguous i think it makes sense because he allowed V to give the final blow,why would he do that? it's his brother after all,and V was supposedly a total stranger.
That,and because Dante never questioned V's condition near the end of the game,dying or fading away.
2- For starters,it's unclear if both V and Urizen are controlled like puppets by the real Vergil, or if they simply acted by their own will like 2 independent beings(even if they're some remnants of Vergil in them,like their need for more power).
Vergil's goal was to get rid off his humanity because he thought it was holding him back,V was born as a side effect imo and never planned to begin with(just like Nero).
Whatever happens next(open the gate,grow the tree and kill millions etc) is unclear if it was part of his plan,maybe he just wanted to be a full demon and that's it but knowing Vergil i bet that obtaining the demon fruit was his goal all along.
V's action throughout the game are also unclear,was he planning to really kill Urizen? or was he just manipulating everyone to do the dirty job?
V was running out of time,he needed to join his other side again to survive but he was too weak to defeat it.
Maybe he actually had the best intentions but fell to the temptation of power near the end,we don't know.
3&4 - Yes to both questions.
5 - Yeah,Nero was indecisive about what to do with Vergil,help dante to kill him or follow his heart about what's right(yeah,corny as fuck).
Talking with Kyrie cooled him off and reinforced his decision of not following the same path of his uncle and father.
Then he remembered about failing to save Credo,which was his only friend from his childhood(yeah,dmc4 did a shit job about making that clear).
He also said vergil's phrase mid-game 'without strength, you can't protect anything',so yeah i guess he had that mindset for a long time and seeing the chance to save his father triggered his dt form.
6 - Now this is tricky,because there's a lot of info about Yamato and yet,it's still unclear about what it can/can't do.
It's common knowledge that the sword can cut anything,except lady's kalina ann in dmc3 for some reason, but it was never stated that Vergil can cut in any random place to create a portal to go back and forth between hell and the human world.
And yes,he did open a portal after cutting nero's arm but he went to RedGrave city with it so maybe it's not the same as travelling between both worlds.
Afaik,Yamato can open/close/destroy doors(Hellgates,like the one in Fortuna) that connect human and demons,but how can they come back if there're no doors to begin with? that's what Nero was talking about imo.
My theory is that there was a gate in RedGrave city and that's why Vergil went there in the first place.
In the end,i think they know they can come back,Vergil even said that he won't lose the rematch with Nero so he knows it's possible..maybe the problem lies in finding another hellgate inside the demon world,it could take years/decades or something.
Sorry for the big wall of text.