Unlockable Special Title Screen
     If  you  get the yellow key and save beauty bomber instead of the
blue  bomber  girl  you  will unlock a special mode that allows you to
unlock  the  rest  of  the  cards  for  the treasure chest (to get the
treasure  chest  beat star bomber's high score in attraction mode) you
will  notice  that  there  will be 7 cards missing. You get the last 7
cards  by  beating  the special mode up to stage 25. Then it will tell
you, that you have unlocked the special title screen.