You are tasked with rescuing Lemmings across 120 levels of challenging puzzling. These creatures walk blindly through the world, hoping to reach safety at the end of each level - but their paths are fraught with obstacles such as steep drops, gaps in the ground, barriers, and rivers.
You control not an individual Lemming, but a cross-hair that can be moved over any of them. Along the bottom, you have access to various functions that can be assigned to a Lemming, including climbing, floating, and bashing. You must click to select the function, then click on the Lemming to activate it. Each level presents a unique set of skills, a varying number of Lemmings, and a specific target percentage to progress.