The game comprises levels where the goal is to clear the field. Each level's field size is set in the level editor; it can be square or rectangular. Blocks of the same size but different colors are placed on the field, oriented horizontally or vertically. The total number of blocks of one color must be divisible by 3. Blocks tapped by the player move according to the arrows drawn on them. If there are no obstacles in their path, they exit the field and appear in the stack below. Three blocks of the same color grouped in adjacent stack cells vanish. Some blocks on the field may lack arrows - these are jokers. They can enter the stack at any time with a tap if nothing is on top of them