I overall really like the game it's a simple easy idea but I can see that you've put a lot of effort into polishing the game to make it feel better as well as a lot of levels. I especially like the CTR effect with the curvedness of the screen as well as the particles.
I know why you wanted to punish the player for restarting but it feels way to harsh at the moment perhaps the player could loose only half a heart, which would probably make it feel more fair.
Besides that tough really well done and nicely polished game especially for 2 weeks.