Let the game play out. When the ball is still in motion and crushing the others, let it play out instead of cutting it short because the balls that you are trying to crush is past the line for more than 3 seconds.
Specsnow,
Agree, play out
The game becomes impossible around level 29 because once the balls rise above the dotted line, you lose, even if a ball is still in play crushing other balls. It's not a very logical limitation. Really this should be 0 stars.
Axelband,
Huh?
I’m at level 32 and I don’t think it’s possible to get further. There doesn’t seem to be any real strategy to this.