Clear the squares as quickly as possible. Collect BONUSES by clicking in the POW box to the right of the screen when objects appear in it.
The POW window is located on the right side of the screen. Wait for the top red line to charge -- when the POW is charged, you will be granted a Special Bonus. Sometimes you will gain more POW if you click the bonus icon repeatedly.
Use your MOUSE to CLICK on a group of 3 or more of the same colored squares to remove them. Clicking on WRONG squares will lower your score.