@ David and Criter.
I made all the changes, that you suggested, except removing the Google ad from the game layer. Still working that out.
Added trail to the rockets.
Speeded up the rockets a little.
Added more tanks.
Put tanks on two different y positions now, so looks more 3d.
Removed the panel from the bottom.
Joystick and fire button are now see through.
The game is much harder now and I am sure the players will enjoy it more.
Thanks for the suggestions.
Will be released in version 1.2.
ver 1.1 is in review.
It is such a shame that when you reject a binary, you go back to the start off the queue.
Cheers
Shane