On the spoiler tag is my workings out to Lunatic 4 Right's crowd control. It's a bit messy, with some of the letters not been chosen at all, and some of it might even be wrong too.
But I hope this'd be a useful reference when attempting the DOS equivalent.
a: Lead Lemming (#0)
b: Blocker (#1)
c: Miner of starting platform 2 px ahead of group
D: Group 1 (Behind miner)
E: Group 2
F: Group 3
G: Group 4
H: Group 5
I: Group 6
J: Group 7 (Ahead of Group 1)
k: Additional 1
l: Additional 2
n: Additional 3
o: Additional 4
p: Additional 5
q: Additional 6
r: Additional 7
s: Additional 8
t: Additional 9
u: Additional 10
v: Additional 11
w: Additional 12
m: Miner of builder bridge 3px behind group but 6px ahead of first miner.
.: Safe zone
x: Avoid zone
Length of queue line loop: 77 px
Frames for miner to trap lemmings: 98 fms
Pixels gained by lemmings from blocker to miner trap: 27 px
Available space: 71 px
Minimum space required for miner to free blocker: 2 px
Minimum space required for miner to destroy bridge: 2 px
Min rate: 4
Max Rate: 11
Order: 77 frames
QWERTYUIOPASDFGHJKLZXCVBNMQWERTYUIOPASDFGHJKLZXCVBNMQWERTYUIOPASDFGHJKLZXCVBN
xxxxxx..J..........I..........H..........G..........F..........E......k.....c
xxxxxx..J..........I..........H..........G..........F..........E..........D..
xxxxxx..J..........I..........H..........G..........F..........E..........D..
xxxxxx..J..........I..........H..........G..........F..........E..........D..
xxxxxx..J..........I..........H..........G..........F..........E..........D..
xxxxxxw...v...u...t...s...r...q...p......G..........F..........E..........D..
c-K: 6
K-E: 7
E-F: 11
G-p: 7
Lemmings hatch count: Spawn setting
48: 6
47: 7
46: 11
9: 7
8: 4
Anyway, the Undamaged Levels results have arrived! The ones that are doable are not too hard, and some of them, like "Fix the road, quick!", are inherited of course.
However, the ones that look impossible are loud and clear I'm sorry to say, as I've solved only 39 of them.
Gentle: 2-3, 7, 9-14, 19, 20, 24, 30, 32
Quirky: 8, 16, 18, 20, 26, 32
Zany: 5, 10, 12, 16, 21, 25, 30
Manic: 2, 7, 14, 23, 30-32
Lunatic: 10, 11, 18, 26, 27.
On Gentle 9 I was able to get up and round the landscape with 6 builders to spare. On Gentle 20 I used the surroundings to my advantage. 30 is relatively easy as I made a wide stair and bashed inside it. My Quirky 20 solution feels like a talisman backroute I think, particularly if it's silver. Zany 5 is also quite easy too, after connecting two bridges across the river. Zany 12 just requires building into the steps to hold the other lemming, nothing too hard. Lunatic 26 and 27 are the published fastest time solutions.
Solutions to some of the harder levels are attached in a bundle, but I think Manic levels 14 and 32 are the best challenges of the lot. I also thought Quirky 27: "The Island of the Wicker People" would be doable too, but if only there was a way to free a blocker while staying on the builder's staircase... Because you need all five builders to navigate your way to the exit.