Listen thugs, Paul & Law regularly partake in fighting tournaments that involve not only regular strong human fighters but also devils, animals & killing-machine level robots. I'm pretty sure you don't stand a chance against any of them.
All you have to know is it requires timing. You have to feel the moves when it's about to hit. Grapple counter requires the same thing. Up + Square for the head grapple counter. To counter an air grapple or a ground grapple, just press Square at the right time. There is also a thing such as recounter, countering the counter. It is the hardest one. It requires the ability to counter like Concentration SPA.