The Prison!
Number of lemmings that drop: 60
75% to be saved
Release rate: 50
Available time: 05:00
Turn the first lemming into a blocker near the lava. The second lemming starts building stairs. Turn the third lemming into a blocker. Now continue building stairs like in the picture. When on top of the steal, bash through the pillars. Build another stair. Bash through the pillars, the lemming will fall down after a few seconds, now bash again (this requires precise timing). Blow up the blocker.
Last edit: Wednesday, 14 May 2008.
Main source: own words.
Graphics: Lemmings, Amiga platform.