I was thinking about putting a real time factor in the act method of the speed bar. The speed of the changing of the bar varies as the speed of the scenario changes. However, with the range I gave the bar, quick clicks will produce minimal changes. Maybe better (for changing scenario speeds) would be to only allow single clicks as the range is not that big. I will think about doing that.

@Pointifix, just by looking at some of the recent users with this scenario, I think it is safe to say that this is being done by a class at Keene High School in Keene, TX

You just need to have the shots removed from the world when they hit the right edge of the screen. When spawned close enough to make it to the right edge, they do not get removed because the do not go far enough for it. With them building up on the right edge, any spawned fish are instantly killed by the shots and the score increases.