Difficulty A/B expert/novice is players choice.Your score for this track is the time (upper right) in seconds which it takes you to earn 10 points. If you do not earn the full 10 pts before the 99 seconds finish you can still submit, just add one second for every point you are short of having the full 10.Formula= Time (upper right) +10 - Score (upper left)notice that when your score is "10" your submitted time is just the displayed timenotice that if you don't get the full 10 points by the time you reach 99 your submitted time just adds a second for every point you miss. This means the worst possible score is 99+10-0=109if for example you only score 3 points before the time runs out, your submitted score is 99+10-3=106