Popping Bubbles

Fun puzzle game, where your job is to empty the entire screen by getting rid of all the bubbles. Luckily they come in clusters of 2 or more, so when you click on one all adjacent bubbles of the same color disappear. The bubbles on top of them drop down and may end up creating new clusters. You will need to plan ahead after a while to make sure you don't end up with a huge pile of single bubbles, that earn you no points.