@Shmolem Ok, since this level has the same title as Superlemmini's but the layout is completely different, I didn't know the solution to it. Because I'm one of those people who likes to solve levels before viewing solutions and replays, whether it's a solving or a failing one, I needed to attempt the level myself first. Interestingly enough, I too also struggled greatly with this level, but I was able to finally solve it after about 1.5-2 hours. I guess that's expected, since this is the penultimate level of the pack, after all. This is quite similar to the penultimate level of the original lemmings, where the consensus appears to be that it is much harder than the final level.
Now that I know the solution, even though it is a different level in terms of layout and the amount of skills provided, I have to say the Superlemmini version is many times easier. Once I solved the NL version myself, I took a look at your failed replay.
I don't know if my solution is intended, but it does use all the skills and a very difficult, obscure trick that you wouldn't expect to happen at all given the behaviors of the skills.
As for your solution, you're on the right track, but you'll need to think outside the box some more with some of the skill placements. Try and see if you can come up with a way to conserve the skills that can come in handy later on. If necessary, experiment with some different routes.
Trust me, no you wouldn't.
I'll be the judge of that
Since it was just a one mention thing on the level pack topic, perhaps you could elaborate on what you meant by "Impossible." Impossible in what sense? Unsolvable? Very unfair levels that require glitches? What would had been your description of the rank in the opening post of the level pack release topic?
Regardless of what I would had thought of the rank, as a huge lemmings enthusiast myself, I love seeing all levels and ranks of a pack, even the rejected ones. A good example is when I played through Lemmicks, where I still played through the entire pack despite hating some of the gimmicks myself. Perhaps the one thing I was relieved about was when it was decided to not activate both the Frenzy and Superlemming gimmicks in the entire Hasty rank, and instead in its current form half of the rank with assign on collecting a pick-up active and the other half with the Superlemming gimmick active. In its current form there was still one very obnoxious level in the rank that I raged so much at that had both Frenzy and Superlemming active. The rank finisher also had both active, but it wasn't as bad due to the very low RR. Even then, I probably would had loved to see both Frenzy and Superlemming gimmicks active for the entire Hasty rank and see how far I could had gotten before I probably raged quit. Believe me, it takes a lot to make me rage at lemmings levels.
Anyway, I digress. Since your Impossible levels are probably long gone or still somewhere in your hard drive but you're probably not going to release them in any form, they likely won't see the light of day from any of us.