I've tried just doing punches, kicks, no blocking, certain number of special moves, no jumping, etc. no concrete execution. latest rumor is hold down to forward as you start the parry, can't confirm it. I've gotten my hopes up way too many times for a real answer, and mostly just check back here and youtube every month or so to see if anyone cracked it. This is so hard to test when it usually works around 75 percent of the time, so when you think you got it, after the like 4th time of doing it, it quits.