I am really sorry if this sounds rude.
This game shows me that visuals and cool effects aren't everything:
I think if you skipped on making the game look so good and put more effort in polishing the game mechanic you went for, it could have been a lot better!
It took me a while to understand that you have to look at your health bar and balance it so it's never full or empty. I reached the end eventually, which was just... a wall.
So no tutorial, no ending, just a shooter with a different health mechanic. It didn't do it for me, I am sorry.