Hi Dirk, thanks for your comments. The planets hiding the bullets and enemies is sorted out, it's now drawn first and not last. Well, at the moment there's no level advances. The object of the game is simply to get a score of 100k or more with a bonus life being awarded at certain intervals. I'll see if I can't build levels into the game.

The vanishing bullets are still a problem that I need to work on.

Once I'm ready and after I've worked on all your suggestions, I'll post again

Enjoy your holliday