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As for Zorn, I'm still in the middle of making other changes to see how high I can raise that gap, and I've had one radical idea this morning that may, if it works out, allow me to raise it quite a lot. But, for different reasons, if I use that idea it would be a nightmare to get the level to work the same in CustLemm even without the digger release trick, so the best way out might be to leave it with the current gap height and make the solution you found the "real" one.

Assuming that you mean my solution, I'd still be interested in the idea with the raised gap, I hope you'll get it work for Cheapo.

In Custlemm, you can release a digger with another one only if you set the second digger at the same position as the first is, therefore you cannot create steps that way.

I didn't know there was a Lemedit version of the level. Geoo89 could you show me where to download the Lemedit version?

You can download the pack including that level on Insane Steve's website. It's indeed set 8 level 1.

I dunno, but for level 17, I saw the solution on first glance. Perhaps the top wall was too revealing...

About level 18, it also works for me without problems. It uses the same music as Chaotic 5: Super Happy Fun Panic Level and doesn't seem to use special tiles.

If anyone ever comes across a demo version of ONML, it might be interesting to check out which fall distance it uses.

Well, I sometime downloaded a demo version of ONML because the complete versions didn't work for some reason (I got a working one now however), and at 66px the lemmings don't splat but at 67 px height, i.e. it has the higher fall distance.
Unfortunately I don't remember where I got this version from.

I just found a backroute for the Cheapo version of "Rhapsody in Blue", @ccexplore, you don't need to care about it though because it won't work for original lemmings:
[highlight]Compress all lemmings except one. Make this one bash to pass the first trap. Use one builder to get over the second and third trap and another one to avoid the fourth and the fifth one. The only thing left you need to do is freeing the crowd blowing up the right blocker.[/highlight]

The pedant in me would like to point out that the H comes before the R; it's pronounced that way too, "A-hri-bar"

Sorry for that. Seems that I remrembered the name incorrectly.

@Leviathan: I might have a look how to increase the difficulty of FANL, but I promise nothing.

No, you've got two sets mixed up. My notebook set contains just ten levels selected from dozens I made when I was nine or ten and recently found again; as you might expect, even the selected few are not great levels, and the rest were too poor to be worth preserving at all.
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Oh, you're right, I just noticed I even seem to have your notebook levels.
Anyway, if you could compile the set for me, that would be very kind. I already have the MichaelBlue and MichaelPink style, if there haven't been made important updates for those styles you wouldn't need to send them. I shouldn't have problems with big files. Also in case you're not using the classic (columns) style in one of your levels, I'd like to get one version of it though.
You know my e-mail? Otherwise use the e-mail button to see or here it is: geoo89(ad)gmail(dod)com

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Also, yes, send a level with your new idea to hide an exit in a strange way.
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I hope to get it ready until tomorrow. I already started the level, but I need to complete it. It btw will use one of the styles of a level of you I didn't solve.
I won't get it ready today, I want to watch snooker now.

To stay on topic, I might make a few levels for the remake with a medium difficulty too.

AotS is somewhat surprising, but I can't say I'm at all surprised with the other three. I really think Back and Forth and 3M need to be in the late 20s when I re-arrange the set.

Anyways, since I figured out what's wrong, I think the horizontal floor with holes like in Cheapo is the only way that on will work. I'll change it to that and re-re-upload.

Well, you might use those slopes but with a length of 4 px. Or if that looks like too many steps, you might use slopes with a decreasing length with 4 px as the length of the last slope. Or you could split the high fall into several ones with a height of 6 or 7 px and then use a platform without holes.

As for the 4 levels I didn't solve, 3M is the only one I didn't give so many tries yet. For AotS, I dunno, but everything I've tried has failed yet. For the last one I had/have got a couple of ideas, but I'd need to check them out for the complete terrain, which takes some time. I suppose I have to think with the creator's point of view thinking what would be an unconventional way to hide an exit. (Although you probably came up with the idea before you created that level.) Just wondering, will it still be the last level when the complete set is ready? For "Back and Forth", my best solutions I can think of are one or two builders short.
However, I don't want hints, I'll try to do my best solving them.
EDIT: I just solved "Dude, Where's My Exit". I had actually excluded the case I was trying, but then rethinking and having a closer look at it I noticed that this idea was possible and found the exit. @Insane Steve, do you want a 'revenge-level"? While trying your level I had got an idea how to hide an exit unconventionally.

@Arhibar: You're also working on a notebook set iirc. Could you send me a preview version of it, please? You talked a couple of times about "Zorn's Lemming", I'd be interested in that and also the other levels.