I'll try to be as clear as possible concerning Kazoo, and try to get what everyone is trying to say.
Yes, when you first play him, he can seem tough, and it seems like he knows the character he's using.
However, at least to me, he has a hard time - or maybe just outright refuses - to mix up his game. So over time, you find yourself gaining the edge over old Koozy, because you yourself are adapting to what he's doing repeatedly.
If he decides to mix his game up and utilize more options, I honestly believe he can be a complete monster.