Make the first lemming (L1) walk a little ways, then mine. &#A0;The next lemming (L2) will turn around. &#A0;Make him mine near the switch. &#A0;The lemming following him (L3) should mine left under the entrance. &#A0;Two of the miners (L1 and L3) should hit steel, trapping the crowd, while the other miner (L2) will break through on the left. &#A0;Make him build over the gap, and bash through the thin wall. &#A0;Let him walk a ways, then mine. &#A0;Shortly before he breaks through the bottom of the wall, make him bash. &#A0;Make him dig to reach the exit once he is safely past the bird. &#A0;Release the crowd by building over the hole that L3 mined.
If you run out of time, release the crowd a little before the leader is finished.
Feel free to ask for help on another level if you need it. &#A0;Also, you can try going to this site. &#A0;
http://www.deinonych.com/lemmings/lemmrev_walk.shtml
