If your highscore is 10.000 then it is very easy to break. The original game had highscore 1.000.000 (!).

Just try to push the balls at the right side too-many at a time. Don't just throw them (unless you want to get rid of them quickly) because they will go at the top of the screen and you'll get no points.

My current high-score is 25900 but the attached screenshot shows a 5x9999 combo (!). It was taken from the game's web page..