Each stage presents a starting hatch, an exit, environmental hazards, and a required rescue percentage. Lemmings usually walk continuously and do not respond to direct movement commands, so the player must manipulate their behavior and construct a safe route.

The player selects skills from the interface and assigns them to individual lemmings. Builders create stairways, bashers and miners remove terrain, climbers scale vertical walls, floaters survive falls, and blockers turn groups around. Levels become harder through tighter time limits, more complex terrain, limited skill supplies, and multiple entrances or exits.

The main objective is to save enough lemmings while using the available skills efficiently. Some stages also require careful timing so that blockers, builders, and diggers do not interfere with one another.

Observe the whole stage before assigning a skill. Identify the exit, dangerous drops, and places where a blocker or builder can control the crowd.

Use climbers and floaters early when vertical routes or long falls are unavoidable. Reserve builders, bashers, and miners for places where they create a meaningful route rather than using them automatically.

Pause when the crowd becomes difficult to track, then work from the front of the group backward. If a level seems impossible, check whether a skill can be assigned to a different lemming or saved for a later obstacle.