It's a fun little game. The environment as well as the cockpit looks really nice and believable and i like that you directly built-in the possibility to easily reset position of the cockpit.
The right side joystick is really intuitive, immediately understood how to control the space ship. Also like that you really make it control by "hand-movements" instead of just using the joystick on the controller. That makes it more immersive :-)
Also the accelerator on the left side seems to work. I would say, it is just a bit too "weak". Or maybe you could add some soundeffects or a visual effect or so, to see if something is happening. Because just by looking at the environment , it's hard to tell if you already flying or not. Guess that is definitely "realistic" but for the sake of a game, would maybe help.
The turbo button is a great addition, it just seemed not to work 100% reliable for me, but could also just be the problem like before, that it's hard to recognize your current speed.
I wished there would be also any possibility to brake or so^^ (Another thing that's maybe not too realistic but would probably help).
The soundtrack is nice and fits very well to the mood.
Just had some trouble to understand the actual task. Saw some boxes on the planets, and first just did fly through them. It seemed the green box around disappeared. But seemed the boxes were still there. So was not sure, if i collected them succesfully, or if that is the task at all. Later tried to approach them a bit slower, but somehow still not sure if i really could collect them. So maybe a little instruction/tutorial at the begin would help. Or introduce any button or so, with which you can then manually collect them, when you are close enough.
For me personally also motion sickness kicked a bit after ca. 5 minutes. Not extremely, but could feel it. Not sure why, because you did actually a good job to have static elements inside your view always, what usually helps.
So, all in all it's a cool game to fly around in space and have some fun for a while :-)