Blood borne The old hunters - Orphan of Kos Game play

This is the last boss of Blood borne the old hunters. Orphan of Kos. 
The one that is lying down on floor like a fish is 'Kos' . So just right after this boss was born, it became 
Orphan. - That's why his roar sounds like crying. 

For me, he is the most difficult boss in this Game. more than 'Laurence, The First Vicar'

How to play 

Phase 1. 

You have to have a hand-to-hand combat with his Chicken Drumstick. It's better to lock-on him and use side step. If your control is good enough then use Parrying skills with gun, but if you are just like me - Just realized there are hand on the end of your arms, Then you should use lock-on and side step to dodge his attacks. 

Well a lot of people said this pattern is so easy to use Parrying skills. But that is for Good players. for me, I was always beaten by his drumstick and lying down on floor. 

Sometimes he draw and throw 'things' from his weapon. Then you should escape that place As soon as possible.  

Phase 2. 

Now he is very upset, jump everywhere like a crazy bunny. Looks like his body blown up. Yes it looks scary so you might want to run away. But if you more far you go, higher chance to die at once. You should go nearer. Lock-off him and keep turning around him. When he start to slapping the ground then turn opposite way of him and Poke his butt.