Ice Eagle, it IS possible in Tightrope City to save 100%, and in less than one minute! Here's how:
Turn up release rate when a few are out. Make the third lemming from the front dig close to the other end where the exit is (you will gather exactly how close later). Make a lemming behind him begin to build about two steps before he enters the step being dug, so his first building step along with the wall being dug should create a wall to block the lemmings turning back. Now have the digger bash at the last possible moment before completely destroying the platform.
Make the second lemming from the front block a few steps past the digger's hole, and turn the builder into a basher or miner so he doesn't build over the blocker. Now the front lemming needs to build so he finishes under the platform containing the exit. When he shrugs, have him build again and he should lay only one step before turning. Finally, make him mine to release the blocker and bash to stop mining, or, if he turns at the blocker, have another lemming mine from the other side and bash. If the crowd is close enough to the end where lem1 builds, they should all make it within a minute.
Anyway, back to the game:
Tricky 27 - The Island of the Wicker People
Good: It's always fun and never boring, and it's not too famous. Also, it has a sort of aventure feel about it.
Bad: Not a lot. Can anyone think of a bad point about this level?