This is based on the tinkeringstudio's "Watch out for the Bat!" In my version click the green flag and if you have a camera in your computer/tablet it will see you wave your hands around in the twilight (dark) trying to catch fireflies!
I'm trying clones for the first time but don't know how to tell them all to go different directions in the end - take a look at my code. All my fireflies seem to circle (or do the same thing) at the end.