The first lemming should dig twice -- once while above a brick wall on the platform below, and again after stepping off this wall.

Tame 2: Rent-a-Lemming

Make the first available lemming bash through the three green obstacles.

Tame 3: Undercover Lemming

Have the first lemming bash through the first unclimbable obstacle, and then through the two pillars.

Tame 4: Downwardly Mobile Lemmings

Turn the first two lemmings into diggers just after they enter the screen. Let them fall to the exit level and bash through a pillar to the left in the way of the exit.

Tame 5: Snuggle up to a Lemming

With the first available lemming, dig anywhere on the first two floors, and then on the far left of the third platform so that the two pillars below are to the right of the digger. Bash through the stack of bricks to the left which are blocking the exit.

Tame 6: Intsy-Wintsy...Lemming?

Using the first lemming, dig anywhere on the first level, and bash through the green pillar on the right.

Tame 7: Who's that Lemming?

Bash through the obstacle to the right, and put a blocker to the left of the entrance. Build up to the exit.

Tame 8: Dangerzone

Have the first lemming bash through the two pillars on the right ends of the first two platforms.

Tame 9: And Now This...

Build bridges up to each of the two steps starting from a little more than one-half of a brick's width away from the step up.

Tame 10: New Lemmings on the Block

Bash through the first obstacle to the right. Starting from where the ground is the thinnest (the top of an arch is underneath), mine to the right.

Tame 11: With Compliments

Bash through the first obstacle to the right and the column at the end of the platform. Once a lemming falls, use it to bash to the right through the next obstacle.

Tame 12: Citizen Lemming

Bash through everything to the right until the lemmings reach the exits. If you want to save every lemming, have two lemmings bash together through the last column.

Tame 13: Thunder - Lemmings are Go!

Starting from about one brick to the left of the step up, build to the right. Wait for the lemmings to climb and turn left. Then, when a lemming is at the same height as the middle of the thin platforms, build. Let the lemmings turn around to the right and build when the lemming is level with the top platform.

Tame 14: Get a Little Extra Help

Let the lemmings fall until they reach the right end of their third platform. Have the first two lemmings build up and to the right, and then bash through the thin column using as many lemmings as are needed to keep any from turning around.

Tame 15: Not Just a Pretty Lemming

Bash to the right through the first obstacle. Starting from the downward slope of the second hill to the left of an unclimbable obstacle, build up twice.

Tame 16: Gone with the Lemming

Dig through the first gold platform, bash through the obstacle at the right end of the floor below, and dig through the next gold platform.

Tame 17: Honey, I Saved the Lemmings

Dig through both layers of the thin bridges just to the right of the entrance platform.

Tame 18: Lemmings for Presidents!

Bash through everything to the left of the entrance as soon as possible.

Tame 19: Lemmings Productions Present...

Bash through everything to the right.

Tame 20: Custom Built for Lemmings