There's so many good things in this.. So unique, I remembered it after 2 years back, when I played it for 15 min. And now again I must quit after 15 min, because controls are really unpleasant (sliding!, speed), music is broken (? all glitchy and harsh) and graphics are just a little too unclear... It needs some polish... but very interesting!
Please just open Celeste and copy the physics! And graphical clearness.