Level 21: You Live and Lem[edit]
Make the second lemming block so as to hold the others back. The one lemming in front has to bash when he reaches the end of the cave. When he's done, he will be in another cave with a gap in the middle. Let him drop through the gap and then bash at the next wall. He will now be able to walk through a passageway towards the exit. There is a trap in this passageway that you'll have to build over, and then the leader is home free. Go back and remove your blocker to save the others.
Level 22: A BEAST of a level[edit]
This is the first of four special levels that pay tribute to some of the other games designed by Psygnosis. (Because of this, it does not appear in the Windows port of Lemmings, and probably not in at least some other ports either.) This level specifically uses graphics and music from Shadow of the Beast. Start by bashing through all of the trees. Some lemmings will turn around, so you'll want to put a blocker near the edge of the grass to keep them from falling off the screen. Once you've bashed through all of the trees, you will need to build up to the top of the cliff, where the exit sits. To do this, have a lemming build a bridge to the left, starting at the base of the cliff. Keep building until he hits the trunk of the nearest tree. Starting from the top of this bridge, build another bridge to the right, and keep going until you reach the top of the cliff. Finally, bash through the last tree stump to reach the exit.
Level 23: I've lost that Lemming feeling[edit]
Make the first lemming block to keep everybody else out of the lava pit. Make the second lemming bash through the wall at the left, and have the lemming immediately behind him block to hold back the crowd. If your basher hits a small gap and stops bashing, make him start again. Continue bashing until he reaches a larger gap (the one with fire coming out of it near the top). When you reach this gap, make the lemming build to the other side. Then bash again until you reach the bottom exit. Now get rid of the blocker to free the crowd.
Alternative solution[edit]
As well as the two obvious exits on the left, there is also a hidden exit on the right, underneath the X below the word "EXIT". Guiding your Lemmings through this exit is more difficult (have a scout build to the right, set a blocker behind him, get the scout as high as is necessary to avoid the flames, then bash/mine to the hidden exit; when the path is clear, release the crowd by undermining the blocker), but by doing it this way you can get 100%.
Level 24: Konbanwa Lemming san[edit]
Make the first lemming mine as soon as he can drop safely to a thin platform below. When he lands on this platform, mine again. A trap blocks the easiest path to the exit. To get around it, make a bunch of lemmings near the front of the pack dig down directly to the exit, and the rest will follow suit. If a few lemmings walk past before the hole is finished, make them dig, too.
The level name is Japanese for "Good evening Mr. Lemming".
Level 25: Lemmings Lemmings everywhere[edit]
The lemmings will make their way to the top of the wire mesh by themselves. When the mesh is no longer as thick, use bashers and/or miners to hack your way into the spider web. The goal is to enter the web from the middle left. The lemmings will then drop down to the bottom, and it only takes one more miner to reach the exit. If a few lemmings turn around, wait until they are away from the rest of the crowd and block to send them back in the right direction.