My sword didn't work after I had encountered the boss (that totally isn't the boss) for the first time. So I couldn't get past the enemy just after him, who was blocking the way. The health bar was a bit hard to notice, perhaps you can move it to the top left and make it horizontal. Also, the part were you introduce the dash mechanic wasn't very clear; maybe you can improve on that.
5 years ago(+1)
I just saw that you're supposed to the dash through that enemy. So I tried the game some more, but then I got stuck at the part right after that enemy. The throwing enemy only kills the other enemies if you click attack, which isn't very intuitive (only discovered it by accident). In the area after that, I realised that this is a new type of enemy that shoots when you click attack. On my second attempt I also noticed that the movement speed is quite slow and the pause/restart menu sure look ugly. I'm also now stuck once again, at the area pictured below.
