-mother ship doesn't act correctly
-barrier explosions don't behave correctly
DONE: -convert sprites to 8bpp palette instead of 32k RGB
-fix Blit_String stub
-find out how to directly draw to the frame buffer.(write a Put_Pixel function
 for functions that need it)
FIXED: -lights on barrier should be green, not blue(blink_lights)
FIXED: -fix energize() stub
-fix blinking barriers
-Get barriers working
-When game over, it should reset to title screen, not lock up.
-finish adding intro
-add TN logo to intro
