When you press space to shoot, your character turns around to only shoot one direction. I had this problem, I forget what I did to fix it...or maybe it was something with the projectile not turning around...not helpful. Anyway.
Maybe some indication as to what button to press to advance the text? I was pushing a couple ones before I figured out what did it.

I like the art! It looks really clean, especially the flashing of the computer screen. I liked that for some reason.
It reminded me of Hotline Miami, nice work friend