Sometimes he just pulls the bullshit lever and hits you. Usually you can avoid those hits with a good Firecracker, but not always. Also when hitting him just keep dodging towards his ass as you swing, it helps keep you away from his head since the game slides you towards it as you’re attacking him. Usually he’ll have to disengage and that’s when the charge comes, but not always. If things are going well you can drop the firecracker while you’re on his ass if it’s been long enough.