That was kinda fun. Got all the way to #2
I only got to #7. Is there a trick to get back together after you've split?
Just wait... eventually you will come back together. It takes longer the bigger you are.
Also, I saw this cool trick where you can shoot some of yourself off to make one of the green things bigger so that it shoots off into somebody else on the other side. I've only got it to shoot off once and I missed, but somebody did it to me once. Luckily there was nobody big around and I could wait and come back together.