Space Wars game update

I did some more work on the game I described in my last post.  New features:

• Multiple enemy ships
• Ships disappear when hit
• Sound effects on fire
• Planets in the background
• Display of number of ships left
• When all ships are destroyed, a new round starts with 10 more ships

The video below is a low-resolution version.  Part of the game has been edited out for brevity.  To see a better version, go to the one on the Simberon web site.