The basic game play is simple enough. You drop colored marbles into your choice of 8 columns. Match 3 colors horizontally and those marbles (and others of the same color that are connected) blow up and make space for more. Sounds too simple uh? At the bottom of the colums are 4 teeter-totters. Each marble has a weight. As you add marbles to one column you can cause the other column on that teeter-totter to ascend and eject it's top marble sending it flying across the board to land in another column. At the start of the game there are only a few colors of marbles. As you finish levels different colored marbles start appearing making it harder and harder to make matchups. Ever other level new special marbles appear giving you more ways to solve problems. Some of them are penalty marbles that cause more problems than they solve. And so on and so on.