As the bubbles fly around your head, you have to try to hit them. In most of the Bubble Trouble games the bubbles will split into smaller bubbles, after you’ve hit them. This makes tit even harder to hit the bubbles. Besides that you may not be hit by the bubbles and the more bubbles in the game the harder it gets. There are many variants of this game. Sometimes you need to shoot at a ball and other times you need to shoot at aliens. But wherever you shoot at, it remains a matter of good timing and quick response.