This level has really been making me mad. I know how to make the path to the exit, but I keep having lemmings straggling when time runs out! The exploder on the final platform before the exit makes lemmings turn around and stay out too long. Even when I've managed blow up the blocker so that one lemming from the crowd ahead of the others, it was always too early or too late.
Does anybody have a good method to get the lemmings to the exit in time? Please be detailed (where I should set my blocker, when I should increase the release rate, etc.). I'm playing the Windows version, if that makes a difference.
As an aside, I really hate levels that are difficult more because of timing than finding out how to use the skills. I have beaten this level before, but it that was a couple years ago, and I don't remember how I did it.