Lemmings/Tricky Levels 1-5

Level 1: This should be a doddle

 * 4 Minutes 50% of 80 lemmings, Release rate 50.

Use a builder to cross the gap, and a basher to go through the pillar.

Level 2: We all fall down

 * 3 Minutes for 100% of 40 lemmings, release rate 1.

As the lemmings approach the end of the upper platform, turn them into diggers. Careful timing and adjustment of the release rate allows you to conserve digs, but its safer to simply give their own hole to dig.

Level 3: A ladder would be handy

 * 6 Minutes for 50% of 80 lemmings. Release rate 50.

The first drop is fatal for the lemmings. Use either diggers, miners or bashers to allow a safe drop on the bridge below.

Use builders to bridge the gap in the water. You may also need to seal the gap on the other side of the bridge.

TO reach the exit, tag two lemmings as climbers to have them head up to right side. Place a blocker near the exit to turn the following lemming around, and have him mine a path back to the bridge.

Alternative solution (100%)
Turn the second lemming into a blocker (at the crest of the entrance mound), then the first into a floater.

Use builders (it should take four or five) from the gap in the log bridge up to the exit cliff. Use more builders to build a landing ramp up to the side of the entrance mound.

Use a miner to undermine and release the blocker, and a basher to release all the lemmings in the pit to the left of the entrance hole.

Meanwhile, have the scout (or another lemming, if they have got to the valley by then) climb up the exit cliff. Before he can reach the exit, have him dig a shallow pit, and then build, to turn him around. Have him mine, and if need be bash, through to the ramp up to the cliff.

Level 4: Here's one I prepared earlier

 * 8 Minutes for 20% of 80 lemmings. Release rate 55.

Create one climber, and have him build the bridges on the right.

To have the rest of the group follow, start building a bridge from the end of the gray rock in the middle. Alternatively, you can create two more climbers and turn one around with a blocker to back through the central pillar.

Level 5: Careless clicking costs lives

 * 5 Minutes for 20% of 80 lemmings. Release rate 20.

Bash through the ball strings on the right, and build over the gap.

In this level, you can tolerate having lemmings fall into the abyss as you build a bridge across the gap. If you want to minimize casualties, you will need to use a blocker.