NGBC- It's amazing, but there's a certain thing I want to know how to do

I dusted it off after not playing it and dismissing it earlier and found out how incredibly awesome this game is- especially Kyo. However there is this thing I can’t do with him… I don’t know if it is a glitch or what, but it allows certain moves to chain into each other infinitely. I’ve seen it in the “tutorial” video (which is really just a combo video with more practical combos) but there isn’t an explanation as to how to do it.