Click the buttons along the top to choose a role. Click a 'lemming' to assign it that role. Get as many lemmings as possible to the goal. Don't let them fall too far or walk into dangerous objects.
Abandoned work. I'm going to switch back to putting all the code under one sprite again, because the lack of shared functions makes this approach untenable. Still need: * end of level summary * nuke button * finite number of tools (or maybe a recharge time?) * climbers * floaters
