Once you are done with launching baloons on your own, Launch stage lets you collaborate with your team and build upon each other ideas. You can evolve a baloon by clicking the evolve button on the right, which creates a new baloon in response to the original. You can evolve multiple levels as well. Again, everything is anonymous at this stage, so you are working collaboratively, but won’t be influenced by the original baloon author. You can also add additional, first-tier baloons during this stage by clicking the Add Baloon button.