Quite a cool game here! It felt satisfying to use the dash mechanic into large groups, and the game had a few interesting level layouts.
I did feel like the physics were my main gripe, it didn't feel tight enough to pass levels without a lot of difficulty, although I understand how difficult good platformer physics are and won't hold that against you. The other thing is that some type of signal of when your charge is about to end would be nice, as I died a few times to my charge ending right before a pit or enemy.
It's definitely a concept with a lot of potential, if you added smoother physics similar to Mario, perhaps also something to make it more seamless (like walls that you could bounce off of) I think you could really push this idea forward.