I remember the first time I beat that son of a gun.
I spent several hours trying to figure out a good strategy. I hate how he will sometimes teleport right on top of you. It's sometimes impossible to get out of the way in time.
Eventually I memorized him enough to be able to get to his second phase, where I went all-out with my arsenal of crosses. It took several more tries, but when I finally got it down, I screamed in joy. "YES!! YES!!"
I think this video should give a good idea of how I reacted to my victory.
WINNER!!!