Played the demo and had a blast. The character is fun to control and is beautifully animated. The gameplay is tight, exciting and well thought out. I especially like the midair dash move. Overall very well done and polished. I only have two criticisms, both about sound effects.
- The sound of hitting enemies should be more impactful. The weak sound effect when landing an attack actually hurts the feel of the otherwise very well implemented combat. It just needs a little more oomph, like a loud thud or crack. If you want to take it even further, the killing blow could be even MORE impactful than normal.
- There should be some sort of sound effect for jumping. Doesn't need to be realistic, but it just helps sell the jump, even though it's already looks and feels very good. I think you could get away with using the same sound as the ground dash, but a unique sound would be best.
That said, I'm really excited to see where you go with this! It reminds me of a mix between Legend of Princess and Chasm. I think I also see a bit of Momodora influence in there as well. Great work!