Use two fingers as the game is surprisingly hard and you won't get by while using one finger, so warm up either your thumbs or your index fingers. This will divide the table in two, so you'll have a twice easier job. Master a single level, pursue perfection and when you achieve it all the other levels will be that much easier, plus your high score will be amazing. Clean your screen before you start as this high-paced game won't forgive any mistakes, whether it was your fault or the fault of your dirty screen. Removing the screen protection is also a wise shout.