Get from point A to point B before time runs out! There is an onscreen timer that counts down from 30 and if it reaches zero you lose. There are things you can pick up to gain extra time. Your score is equal to how many seconds yo have left when you reach the end of a level. Your high score for each level (there are six at the moment) is automatically saved and gets displayed at the level selection screen.
Thanks to http://nintendomax.com/viewtopic.php?t=11887&f=54 for the news.
http://thatotherdev.wordpress.com/2010/05/26/swing-ball-wii/