Man, this game looks cool! If only my android worked properly with these kinds of apps...
From the look of it, it seems like you've got a pretty solid game! I can imagine this being a very immersive VR experience... I'm picturing VR-based mechanics, like telegraphing for enemy attacks from behind or distractions from the left or right. Maybe when you throw enemies into the sky, they could actually land on your castle or on top of you, so you have to be careful where you throw. The possibilities are endless!
Your demo video is fine, it could probably use more flavor text/effects to draw in potential players. It has enough gameplay to get the right picture, so it's pretty good for now!