The ending was sad, but it was what they had expected.
Compared to Dante who was more like a human, Vergil was a cold and proud demon, and the demon world was his home.
It was not only a story about the hero; it was also Vergil's elegy.
Compared with Shu Mountain, this ending didn't show any horrifying power such as Old Demon Youquan who covered the sky; that style and power better fitted with cultivators.
However, the power showed in Shu Mountain belonged to cultivators.
For most warriors, the battle styles showed in Devil May Cry 3 was probably more fitting for them.
"The concentrated mind can pierce boulders."
Yes, concentration was the key. Although they didn't have endless demonic energy to overpower their opponents, they could highly concentrate their minds and energy to deal great damage. For example, Vergil's katana could cut through the Hell Vanguard and even chop the head of Beowulf, a powerful demon boss, into four pieces.