Great stuff ) I really like all the mechanics. I like how you move the ship by shooting, it's not apparent in the beginning but when I realised it it made it much more strategic. I would've made so that you can collect health by hitting it with the rocket too. Right now, rocket just gets stuck in it neither exploding nor collecting it. I also think that clicking to destroy the rocket is a bit redundant since at that time you can't control it anyway so why not explode it automatically. Beside this two things it was a very fun game for me.