Loss of Lemmings: Zero
Platform, then start an Attractor. Platform to the stones. Platform over the pit under the steel. Platform again just after it reflects. Fence far enough to clear the steel upright, then Stomp almost to the bottom, then Fence again. Platform across. Release the main horde at this point by making the attractor into a Platformer. Fence with the lead Lemming up towards the exit. If the fencer fails to stop, make it into a Platformer to fill in the space under the exit.