I actually finished your game, so I thought I could tell what this game really needs.
An easier mode and some warnings before the attacks are the most two things I hope you would consider as options which can make players find this game more attractive.
When I was half way through this game, I found it quite difficult to understand.
I just don't know why am I dying so many times. The enemies are confusing.
Anyway, I don't get the point of the story line, though, I love the atmosphere here.
Still giving you a point.