Thank you for the feedback and for playing! I had not noticed the spinning falling behind like you described but now that you mention it I know exactly why that happens because I ran into a similar problem with Saturns rings!
I made the shooting space ship not shoot until it gets close enough to the far orbit track so you could have time to shoot it down but I can see how that is not enough time for a new player. The projectile could also probably be slower so it's easier to dodge with the planets but I did want you to have to tank a shot with the planet if the shot missing would otherwise make it hit the sun.
I appreciate your dive into what you found difficult specifically with the alien wave!