 The goal is to guide at least a certain percentage of the green-haired, blue-robed lemmings from the entrance to the exit by clearing or creating a safe passage through the landscape for the lemmings to use.Unless assigned a special task, each lemming will walk in one direction ignoring any other lemming in its way (except Blockers), falling off any edges and turning around if they hit an obstacle they cannot pass.A lemming can die in a number of ways