I spent a long time playing before I scrolled down and saw in the controls that I could move left and right. I actually had way more fun playing with just the rocket launcher. I'm not saying it would be better with the mechanic removed- I actually think it would be counterproductive to your sandbox design philosophy. I just wanted to share my experience. I will say that I think it would be perfect for me if the side to side movement was slower, just for small course corrections.