if you cant kill him at all there one way but it takes long time... just keep punching him non stop, he will never attack and just block. his health will go down very slowly but its the way i did it cause i had shit moves to kill him

a faster (but just as cheap)way to do it is to get off the turret of the tank and go down onto the lower part of it, the boss will jump down after you and right when he lands do a knee drop on him. He won't block it and he'll jump back up onto the turret. You can do this over and over, and you should be able to take care of him in just a couple of minutes. I had a hard time with him too at first but once I figured this out he was pretty easy

easier way is to jump and kick him when he starts laughing and when he does his kick move combo thingy move around him and jump kick him in the back and do the judo kick aswell

i try all dat but the damn boss just kicks the hell out of me and strangles me arrgh help me plz!!!!!

get to lvl 50 and just knee drop him