This is a fantastic and overall very polished game. Easy to understand mechanics but with a deep learning curve. I think you could easily release this on Steam if you added more levels etc.
One thing I noticed was that jumping after a slide can be a bit tricky to perform. Not sure if it's just my skill level but it seems that if you are crouching you can't cancel into a jump (essentially you need to be in neutral to jump). I think this is the only thing that needs improving. Everything else is top-notch. Well done!