Here's another challenge for you's...
My best for minimum skills on this level was 16. I'd tried several VERY different solutions (using various methods - old fashioned methods, bombing the one way wall, sliding glitch, steel glitches)... and yet, every solution I tried seemed to have the same minimum of 16 skills and cannot be improved beyond this point. Finally, I managed to find a 15 skill solution. My challenge is to anyone else: Match, or even beat, that!
Another one is on the harder version of this level (it's in the demo on the first page, level 8 of it). The level gives you 18 skills, and the solution requires all 18. Can you find a way to beat it with only 17?
(The timing is VERY tight on this one, you'll have one second left on the clock when the last lemming exits.)
All old downloads (except the official demo) have been removed.