Lemmings/Taxing Levels 16-20

Level 16: Mary Poppins' land

 * 3 minutes, 95% of 80 lemmings, release rate 50

Make the first two floaters, and the third a blocker. Make the first scout attempt to build into the slope when he is about two-thirds to three-quarters up it; he will instead turn around, and when he is about halfway down, start building a ramp back towards the entrance. Make the other a blocker when he is on the end of the flat steel.

Once the first scout has finished his ramp, gone towards the exit, hit the blocker and turned around, have him build another landing ramp to about halfway up the slope's flat side. You can remove this blocker at any time after this, as his job is done. Finally, release the crowd.

Level 17: X marks the spot

 * 7 minutes, 90% of 80 lemmings, release rate 50

This is the same as Fun 23: I've lost that Lemming feeling, but with fewer resources (especially no blockers) so a different approach needs to be taken.

Mine to the right from the fourth floor tile from the right; you will lose two or three lemmings to the lava, but the rest will be contained, and the miner will be stopped by hitting the steel so no need to waste a builder. Start bashing to the left, then mine another containment tunnel to the left behind him (you will need a builder for this one).

The rest of the level plays pretty much like the Fun version. Once the scout has secured the last gap and is bashing through to the exit, build to bypass the left containment tunnel so the crowd can follow.

Level 18: Tribute to M.C. Escher

 * 5 minutes, 87% of 75 lemmings, release rate 50

Build a ramp from the base of the one-way block to the wall, then another from there to the block. As soon as a lemming reaches the top of the steps which form the left side of the block, make him a bomber. If timed correctly, he will explode at the moment he reaches the right edge of the block, blowing out a large enough chunk that the drop is reduced to a safe one for the others.

Level 19: Bomboozal

 * 2 minutes, 91% of 80 lemmings, release rate 80

This is a very tricky one, since you have a tight time limit, you have to be very precise with your bombing, and you have no blockers to help you.

Make the first lemming out a bomber when he is above the middle of the first fire pit, and the fourth one (not the second or third — remember that bombers act as temporary blockers) above the right edge of that pit. (He should leave a short ledge on the first-level floor.) Your third bomber needs to be set when he reaches the second-level wall above the middle of the third-level fire pit (the resulting hole should be under that ledge), and after he explodes, the fourth one just after he lands on the ledge just mentioned (that hole should be just to the right of the only fourth-level wall). Finally, make the last bomber just as he walks past the wall above.

Level 20: Walk the web rope

 * 5 minutes, 88% of 80 lemmings, release rate 50

Make the first one out a blocker the moment he lands. Build a ramp to the left from the base of the web, make the builder a blocker when he finishes, and build another ramp from there to the web; that way you can safely bash into it without bashing through the floor. Build another ramp up to the second strand; after you bash through this, you should be high enough that no further ramps are needed.

Wait until the crowd reaches the other web; when they are nearing it, it may be a good idea to build a wall from a few ramps packed together, to prevent them going back to the start. You should be able to bash through the second web without risk.