Collect the Sega signs that appear and that will make the fruit you collect worth 500 points.

To get to the tenth round you need 36 dolls. Get all dolls from rounds 1-1 through 9-4, including the hidden dolls. If you do not have all the dolls, when you reach 9-4, the game will end, not letting you go to 10-1, and to the real ending.