Thanks for giving my game a shot! I can tell from the video that I need to do a much better job explaining how blocking works. Enemies have two attacks, a high and a low attack, and you need to block either up or down to stun them. The position of the yellow warning symbol that pops up before an attack indicates which way you're supposed to block. That's why you kept getting hit when you thought you were blocking; you were blocking low but the attack was coming high. Like I said, that's completely my own failure of not making that system clear enough in-game. Sorry!