There are dos/Lemmix custom levels that you need to build a 3 builder wall to contain the crowd , and then strategically , to assign some climbers , that they will climb through the 3 builder wall , and will prepare the path for the other lemmings!
I have the videos of the solutions for two of these levels in my channel! Now , I know that you don't like to have solutions , or parts of solutions of custom levels , spoiled , but I will post the link for one of these , so anyone else that will watch it , will be able to confirm here that this is possible!
Link for the video:
https://www.youtube.com/watch?v=-kDTPPi-qPs
The level is : my level , "The squares fight back (part 2)"
You need to first be aware that it's possible for a climber to get over the builder wall in certain engines and then enforce it so that the player is forced to discover that it is indeed possible, since again none of the official games require this, nor do any of the custom packs made for Superlemmini, and most certainly not the ones that got converted to SL due to being made from other engines where it's not possible. Even though I haven't viewed it yet, the fact that you posted a video proving that it's possible suffices. Also, I just tested the builder wall on Tame 1 of ONML on Dos. Indeed, a climber is able to get past it, so I stand corrected. So, it turns out that it's possible in more engines than I thought possible: Amiga, Dos, Lemmix, and Superlemmini. In particular, I grew up with the Dos version of the game and only discovered just now that it is indeed possible for a climber to get over a builder wall. Now that I think about it, it was premature for me to say that it's not possible for a climber to get over a builder wall in Dos, since I have never ever tried assigning a climber. I have only seen walkers turn around on a builder wall since it prevents lemmings from stepping up, but I haven't ever tried to see what happens when I assign a climber.
Also I'm not sure if it's 100% similar to the situation that is showcased in the screenshot , but here is an example of a dos/Lemmix that I think it showcases something similar:
The level is "Rise Through the Ranks" by Clam , from the ClamSpam04 pack ( link for the pack: http://lemmings-db.camanis.net/levelpack/ag1zfmxlbW1pbmdzLWRichALEglMZXZlbFBhY2sY4gIM/ )
As you can see in the preview picture of the level in the link , there is ceiling above the opening hatch! If you assign a lemming as a climber in dos/Lemmix , it will climb through that ceiling! In Lemmini/Neolemmix that's not possible!
Yes, this is indeed similar to what you saw in the screenshot. You can't test it right above the entrance, but you can on the right side. I just tried out the level you mentioned on Dos and once again I stand corrected. When climbers climb on the right side, they can still get above the ceiling even though there is terrain in the way. So yet another thing that I thought wasn't possible on Dos but it is. To be fair, even though I have played so many custom level packs for Dos in the last several years, I have yet to encounter a level where a climber is still able to climb even though there is ceiling in the way being integral to the solution. You can guess that I have yet to play any of Clam's packs.
Even though the two things I brought up which I thought weren't possible on Dos are possible with the climbers, it doesn't mean that they're intended behaviors in SL. SL is its own engine and there are still plenty of differences between it and Dos and Lemmix. eric and I would like these so-called bugs in our eyes fixed for SL, but again it's ultimately up to Tsyu to decide if they should remain or be fixed.
I have posted some "Lemmix to Neolemmix" level conversions of some very old levels! One of these is practically Lemmix/Superlemmini physics exclusive (It's main trick is completely impossible in Neolemmix)! Another of these also uses a trick that is not possible in Neolemmix , and in my solution of another of these , I also use another "not possible in Neoleemix" trick , that it can be avoided ( so that level is still possible in Neolemmix)!
As I mentioned before, I'm indifferent to glitches, but I lean more towards don't like them vs do. My reasoning is that skills should act reasonably and predictably, not the other way around! That being said, I still enjoyed the custom pack Pimolems on Lemmini very much. Other than one or two that definitely shouldn't be possible but is because of the way the miner works in Lemmini, the others aren't as strange and they generally don't take too long to hit upon in the pack. One of them is a climber glitch that I'm quite familiar with because it's also present in Dos, while the other one is strange but can simply just be thought of that the level sides has invisible solid terrain so that lemmings can climb or simply turn around in Lemmini.
Yes, I agree with Kaywhyn. Although these issues may be present in the Amiga version levels and no original levels require these, I do also think they should be fixed. Because most people don't just want to play the original games with Superlemmini. Many people also want to play custom packs too. Also if Superlemmini is going to even remotely compete with NL, they should be fixed, otherwise people will just want to play custom packs in NL.
Glad to hear it and completely agree with all of the above.
Also people should be glad that I'm fond of Superlemmini and am willing to take the time to make more custom packs for Superlemmini.
eric, WillLem, and I are huge fans of SL. The fact that I stayed with Lemmini/SL for at least 4-5 years before I finally tried out NL last year certainly supports this. Indeed, I am thankful for all the packs that eric has converted to SL, as I too felt SL doesn't have enough custom packs. I haven't played them yet, but they're on my to-play list at some point.
I've read Tsyu's info doc on how packs work(levelpack.ini and .ini's work). Even Willem requested info on this as I posted a small example on how to pack levels,
as I know Willem likes Superlemmini too. He found this part difficult, where I find it rather easy(with help from Tsyu's doc)
It's just a matter of brushing up on reading on how to, like you did with Tsyu's documentation, as well as find a level pack for SL and simply imitate the structure of the levelpack.ini file. NL is the same way, imitate the various files for levels/level packs.