You definitely should get used to pure movement-based dodging instead of rolling/dashing/whatever other games gave you
I can play the game just fine, but in a more typical shooter, the enemies and their fire move slowly. This one's all at once, and I completed it somewhat easily anyway. When I'm using cursor keys to move (as I prefer), maybe it shouldn't sort of start and stop in a way that makes it difficult to move exactly where I want to go, to avoid gunfire.