I really like the concept and think it makes for a great game! Maybe the health should be shown above the player? It was hard to focus on my health, not getting hit, and hitting the objects at the same time. Overall, Good job!
Thanks for playing and giving feedback! Maybe I would temporarily show how much health you have after getting hurt so you would know how much health you have and then hide it after a few seconds so it would not obstruct the view of incoming projectiles!