A bricks breaking where you have to shoot the bricks to fill the gaps and form a complete row to clear that row and all bricks below that row. Higher levels get you higher scores and more troubles too. use bombs and timers wisely. You can move up a level either by clearing all rows or by achieving target score for that level.
Use arrow keys to move sideways. Up arrow key/ spacebar to shoot. and A+D to select bomb and timer