I've noticed the different skill sets from levels but I feel like cutting the skill sets and placing them to other levels and see how the solution differs. Also, I have a DOS attachment of three different lemmings games, featuring the Original, OhNo and Holiday lemmings just in case you don't know what the skill set is (And yes, I know there's a Lemmings Encyclopedia, which also has a skill set for each level in the solutions, but some of them are different I think).
So let's go!

Here are the first four challenges from OhNo.
Solve Havoc 3 using the skill set for Havoc 6
0|0|0|1|10|0|10|0Solve Wicked 18 using the skill set for Crazy 12
0|0|7|4|4|6|0|0Solve Wild 10 using the skill set for Wicked 6
0|0|40|2|12|0|4|0Solve Wicked 11 using the skill set for Wild 4
2|2|0|2|8|7|0|2And here's one for the original
Solve Taxing 2 using the skills for Taxing 1
2|2|2|2|8|2|2|2
I like this idea, but I'm finding it difficult to think of challenges for it. It's probably not ideal when setting challenges is harder than solving them

(and I guess the Level Design Game suffers from this as well, to an extent).
The trouble is, a lot of levels (original Lemmings especially) have generic skillsets like 20 of each. And others, like
Mayhem 3, have been done to death already. Anyway, I'll keep looking.
I would never worry about the Original levels so much.

I think OhNo is going to be the best of the three, leaving the tame levels out that's for sure.
Infact I have two more available:

Using SS from Havoc 18 solve Wild 15; and using SS from Wild 9 solve Havoc 4.
I like this idea, but I'm finding it difficult to think of challenges for it.
I had a fair bit of trouble as well, but I use the random number generator to help myself out. I use two random numbers (As levels): One of them I use to cut the skills off, and the other number is to paste (and replace the current skills) them. I don't usually worry about lemmings, rate or time.
Okay, I just thought of one:
Taxing 11 (The ascending pillar scenario) with the skills from Taxing 24 (Take a running jump). 30 builders and nothing else.
A better idea for this would be custom skill sets not possible without editing the level in most cases.
A couple more interesting ones:
Using SS from Crazy 14 Solve Wicked 4.
Using SS from Wicked 12 solve Wicked 1
Using SS from Crazy 20 solve Wicked 3
Using SS from Crazy 6 solve Crazy 13
Using SS from Crazy 19 solve Havoc 20
Using SS from Havoc 8 solve Havoc 9
Hot challenge: Using skill set from Crazy 8 solve Wicked 10
Bumping this up because I uploaded 5 more challenges.
For my hot pick, the skills from Crazy 8 are:
1 bomber,
4 blockers,
7 builders,
3 bashers,
3 miners,
1 digger.
It's possible to use these skills in Wicked 10 without a glitch
Original
1.name:one two three four five six(all the six's...)
|2|2|2|3|4|4|4|4|
2.name:Alctraz(the prizon)
|0|0|10|10|10|0|0|0|
3.name:Geuss who.?(mind the step)
|0|0|0|0|10|1|1|1|
4.name:Hands up in the air(call the bomb squad)
|0|0|5|2|10|0|0|0|
5.name:Build a water slide(its hero time..)
|0|0|1|0|0|1|1|1|
6.name:And coming down(going up...)
|0|0|2|2|18|1|1|1|
7.name:Next to the Prerrie(turn around young lemmings)
|0|0|0|0|10|2|0|0|
8.name:Charge your batterys(The great lemming caper)
|1|1|1|1|10|2|2|2|
9.name:just a minute AGAIN!(just a minute(part 2))
|2|2|2|2|5|2|2|2|
10.name:rondezvous and the mountain(rondezvous at the mountain)
|2|4|6|8|10|8|6|4|
Original
1.name:one two three four five six(all the six's...)
|2|2|2|3|4|4|4|4|
Not that hard...
2.name:Alctraz(the prizon)
|0|0|10|10|10|0|0|0|
Bleurgh. More originality, please.
3.name:Geuss who.?(mind the step)
|0|0|0|0|10|1|1|1|
Did you even try this one...?
4.name:Hands up in the air(call the bomb squad)
|0|0|5|2|10|0|0|0|
It can be done with well less. Come on, try something that doesn't just reduce the existing skills.
5.name:Build a water slide(its hero time..)
|0|0|1|0|0|1|1|1|
I find it very hard to believe you've found a way to complete that level with just a basher, a miner and a digger... since the level requires 100%, the bomber is an obvious dud.
6.name:And coming down(going up...)
|0|0|2|2|18|1|1|1|
So basically, the same as before, but (if it's even possible) you have to find a way to not need the floater...
7.name:Next to the Prerrie(turn around young lemmings)
|0|0|0|0|10|2|0|0|
This one is actually pretty good.
8.name:Charge your batterys(The great lemming caper)
|1|1|1|1|10|2|2|2|
I believe the idea is to make the levels harder, not easier.
9.name:just a minute AGAIN!(just a minute(part 2))
|2|2|2|2|5|2|2|2|
Same as above.
10.name:rondezvous and the mountain(rondezvous at the mountain)
|2|4|6|8|10|8|6|4|
o_O
I'm pretty sure this one is impossible... if not, this could be quite interesting...
Please actually TRY your challenges before you post them, to make sure:
1) They're not impossible
2) They're not easier than the original (or otherwise extremely easy)
also, please, GROW UP!
Please actually TRY your challenges before you post them, to make sure:
1) They're not impossible
2) They're not easier than the original (or otherwise extremely easy)
also, please, GROW UP!
Well, those are good points, namida. For the second one I would suggest that the solution is at least different to the intended one.
I have a couple more hot levels here:
Using SS from Wild 13 solve Wild 5.
Using SS from Havoc 18 solve Wicked 15 (I solved it using every skill

).
Yes. Take for example his one on The Great Lemming Caper. Make both lemmings build once over the first gap, then both build twice over the second gap. I believe this is how I solved the easier version the very first time I played it.
Giga, I think you'll need to provide proof of the challenges being possible. To do this, save a Lemmix replay!
I'll do that
I'll try
tricky 21
1|1|1|1|3|2|1|1|
fun 23
0|0|0|0|1|1|1|1|
I don't think either of those two challenges are possible. However...
tricky 21
1|1|1|1|3|2|1|1|
...this can definitely be done with one more builder.
tricky 21
1|1|1|1|3|2|1|1|
This one's definitely possible. In fact I managed it with a basher (or miner or digger, take your pick) to spare.
As for the other one: did you mean Fun 24? That would make more sense.
tricky 21
1|1|1|1|3|2|1|1|
This one's definitely possible. In fact I managed it with a basher (or miner or digger, take your pick) to spare.
You're right. I just worked out how. I also had a floater to spare.
...You can do that one with just the builders and bashers.
Umm... no?
Ah, missed the whole two-sides-to-bash thing. >_> I didn't bother actually trying it since the creator is notorious for either impossible or ridiculously easy challenges. (Although, 3 builders and 4 bashers is possible - just.)