A very interesting concept! The movement felt nice and juicy, and the overall feel was good. The only thing I do have to mention is that the controls are just a bit difficult.
I found myself having difficulties climbing back up, but I eventually got it.
I do suggest adding alternative controls of W,A,S,D and J and K as, I often prefer playing with the "d-pad" on the left.
But this game felt great. I hope you continue the development!