It's cute and well put together. I just didn't really understand the gameloop. If I want to avoid doing damage I thought maybe I just blow myself up immediately every time, and when I did that I got my highest score, so what was the point in moving and the other abilities? When you hit the end you just blow up, but you can't turn around so how do I stay inside the area?
It did leave me wanting to figure it out though so that's good!! I think some sort of tutorial or soft introduction of the game would be great.