Firing Cubes
After each cube appears on the board, move your mouse left or right to select the row or column, then right-click to fire the cube. Keep an eye on the upper left to see which cubes are coming up next and plan your strategy.
Bonus Cubes
Clear the required number of cubes to complete each level. Star Cubes gives you a time bonus! Fill the meter on the left side of the screen to advance, and try to set up combos to clear cubes quickly.