I think the concept is pretty cool, and it definitely fits the theme pretty well. But yeah- game is extremely difficult. By the time I've actually managed to get a heal off- the enemy's already attacked again, and he hurts lmao. Audio would definitely be nice, even if its as simple as when the enemy attacks, when you fail a combo, and when you succeed at a combo. I'd also play around with the inputs- there were a lot of times I tried to push the attack button early and nothing happened, or the arrows overlapped with the existing arrows. But I really like the rhythm game concept, can definitely go far with it!