Alright, that made it work for some reason. Movement in the game feels like it could be smoother and the levels are somewhat annoying to navigate with all the transitions. Combat is super interesting, but it feels like Iaijitsu-style single thrusts register and kill better than anything else. Attempting to frantically wave my sword around on destructible objects led to only a few of my slices counting. In addition, if you don't need the mouse for clicking on scene elements, I'd suggest moving your sword movement from following the cursor while clicking to copying the cursor's movement while clicking. That way moving your cursor out of range of your character doesn't stop your attacks dead.
For glitches, I ran into the parallax issue other people had as well as the lord getting stuck. Here's a webm I took of the lord error.
https://gfycat.com/gifs/detail/SentimentalAdmirableGallinule