When I fight with Vergil I see him use ultimate Devil trigger attacks, How do you use those attacks?

From Devil Mary Cry|DMC Wiki: "The amount of time the user can stay in this form is determined by the length of the Devil Trigger Gauge, and Devil Trigger cannot be engaged unless the first three runes are filled. The capacity of the Gauge can increased by purchasing Purple Orbs. ... In all games excluding the second, it is possible to unlock 'Super' versions of the playable characters.

These versions possess unlimited Devil Trigger" To unlock unlimited Devil Trigger for Super Dante, beat Dante Must Die mode.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.