Wow. Thank you very much for this very detailed criticism!
I understand your points and a better version will come after the rating time has come to an end.
It will come with:
- a galaxy camera
- better control of own black hole
- help vectors which will show the velocity and force directions you fly
- ingame description for game goal and controls
- options for: seed to be able to get the same galaxy; toggle sun gravity and orbital velocity; mouse and scroll sensitivity
- neutron stars and pulsar
- and more