Oh dear, this game is amazing I love your pixel art and the style of making every plattform in black. Also the controlsfeel really responseble (especially the wallrunnig and dash) and I like the mix of two attacks (in which the dash is by the way my favorite in all plattformers). I think the boss should have had the same pixelsize as the rest of the worl, but maybe you were just running out of time.
Also: I was really impressed with the shockwave effect, because I tried to make one myself a few weeks ago and failed. How did you do that? Shader Graph? A Shader applied on the cam? Please tell me how to make this effect, I would really appreciate that!
Although the game is awesome, I think the dash attack should have a bit more impact. The first few minutes I was playing the game I thought t didn't make any damage. Also the walking particles should be square, so that they match the pixel art.
Appart from that: cool game! I had a lot of fun!