It's not a big deal and might be a slightly odd thing to comment on, but the intro cutscene when you first start the game could benefit from pausing at the end of each text box, with a button/key prompt before showing the next one. As it is now, I barely have time to read each one, and half the time it gets cut short, the next box showing before the last one is even finished typing out.
I know it's not exactly the main focus of the game or anything, but I figure if there's a backstory included then you'd like players to be able to read it.