Nice! I think the dash is a fun base mechanic to work with, and it was really fun to fling myself and bounce around the level. I think a few more mechanics could add a lot of fun depth to this game, like hazards that will hurt you if you dash into them to discourage you from just flinging yourself at full velocity every time, or maybe having to knock enemies into each other to deal extra damage to them or something. I thought the sprite art was good, but the colors felt a little muddy. Grabbing a limited color pallet from Lospec would probably help.
Overall though, nice game! I'd love to give it a go again if more content was added.