Now the background music can be stopped.
Now the same time enemy ship bullet sounds are limited to one sound to avoid sound clipping.
Now the top ten player name insertion confirmation is visible, so now the player knows what he/she can do.
Now there is something similar to an explosion for the enemy ships.
Now the blue stars are somehow randomly rotated.
I have changed the sounds for the shots; they are totally made on my PC using the RHINOCEROS POLYPHONIC virtual synthesizer.
Now the deep space background changes randomly and infinitely.