Main mission of game - clear all field. Click the side bars to shot a colored block. There are need to collect 3 or more bricks with same color together like polymino to remove them. Initial bricks has not direction, but bricks you shot from side bars saves the direction and continue moving as soon as next cell got free.
Game contains custom level generator where you can select colors count (2 - 12) and field size. There are also several presetted challenging levels from most easy one to almost impossible to complete it.