WOW. Your game looks so professional dude. Especially the title screen and the planet selection screen. I loved the animations and transitions. Good job! I was impressed. The game is really interesting too.
Nevertheless, I have a couple of suggestion and I agree with Mastasurf on some points. These suggestions are just for the next release of your game since the HB Contruct 2 competition is over.
OK. First, the easy setting is just...too difficult ;). I couldn't last more than 30 seconds.
Actually, the main reason I couldn't last longer is because of the controls or maybe the speed of the ship. I think the ship goes too fast. Maybe you should reduce its speed a little. I also have a lot of issues with the controls. I didn't really get how to move the ship.
I hope this helps. By the way, feel free to try also my game and leave me some comments. I will appreciate. You can play it through my signature.