Vergil would never waste his time on something as stupid and pointless as playing hide and seek with anyone, but you, you are his child and he would not do this for anyone else but you.
He had to stand facing the wall with his eyes closed and counting to fifteen while you were hiding throughout the house looking for a way to hide as deep as possible to win the game.
When the countdown came to an end, the half-demon could finally open his eyes and go in search of you. With a heavy sigh, he walked around the house looking for his child. Sometimes he had to bend under the table or look behind the curtains.
Vergil, of course, was not delighted with such a game, but the feeling that he could please you filled his heart, it was pleasant when his child wanted to spend free time with him.