I really like this game. 8 minutes passed in no time! I was already going to comment that the game is cool. And then you introduced dashing mechanism :D
I like the simple art and general minimalism of the game. Simple mechanics gave you time to create nice levels. I like that some levels have two paths - harder with more coins and easier with less. Shame that the win screen didn't show how many I've collected.
My main complaint is that the game doesn't incorporate the limitation. I just assumed the guards are killing me and there is nothing to suggest otherwise