interesting! I didn't know about this. So, I'm assuming they got rid of these in DOS for some reason (why?) because none of these seem to be present (I'm looking at the Lemmix version of the DOS levels.

Take the Stairs; ....
wow dumbest oversight on my part ever. That's my fault; the level needed a minor change to accomdate for physics changes]. This level's kind of obvious (For a veteran) anyway, but glad I'm checking it jeesus...

Dangit; Your solution to Pillars of success was similar to mine but once again I overlooked something. I went and checked the Cheapo version (which I already did) but missed that there are some important differences I didn't copy over. I may edit this; not really sure on including this one.

All others were intended or acceptable!

Working on level order now.

I'm afraid I've not kept a record of all the changes; I decided not to from the beginning cause there's just too many. I kind of wish I did but eh... I will summarize them as best as I can.

Has anyone made any attempts at the previous uploaded levels to test?

Here's one more (possibly my last) upload of levels to test. Hole in the Wall, Short Journey and Dual Action are levels I have not solved.
The rest except for Another Impasse are easy levels (intended for the first or second rank) though some might be a bit harder than they seem at first (I thought this about "Just Old Fasioned Building"

I have only one more level that I'm testing out myself then hoping to wrap this up soon.

This stimulates my thought to a question; I wonder if anyone else has these feelings;

When thinking very hard, particularly, or most noticeably for me, at least, on a logical type of problem/puzzle, I know for certain when I'm in a deep state of though/concentration and when there is in fact 'something to' the problem I'm trying to solve. A good example of such a problem here is a puzzle that I don't know is solvable or not like some random Cheapo Level I come across . This is very difficult to describe but I'll try anyways;
Solving a complex logical puzzle requires memory and ordering items around in your mental space. Something I love a lot but always struggled with. But I honestly feel a distinct mental feeling when this takes place. Almost a 'physical' feeling but that word may be misleading here.* And its so satisfying when you figure out something complex like this and see it to completion.

I feel a similar albeit quite different feeling when creating artistically. Though with video games or music the same Eureka feeling can happen, I think the memory part is very different (or non-existent). For me when creating it often involves starting by mushing random things together or going over practice routines and then veering off into randomness or unknown territory. Eventually you hit upon something that strikes your fancy and you follow it to more interesting things. I don't think much memory is required here (at least in the logical sense I use above, different from other types of memory, obviously memory of your routine or skills is needed etc.) But idk; correct me if this is patently wrong.

*The better I get to know my mind and how it words the more I've noticed and have been able to detect these different discrete types of mental feelings. That is when I'm not dead tired, which is most of the time because of my job >_>

Great work on Evacuation and Deadly Detour! As for the latter that I would say is a backroute because it doesn't use the one area of the level at all; which Proxima found. And I'd say that's more elegant than digging the exit out. That one was deceptively tricky.

Locked and Loaded:
Gah! your second solution was so close to many things I tried but never succeeded to do earlier. It may be close to intended idk... In the process the solution I came up with imo is beautiful; it's so much more intricate and also fits in the original 7 minute time limit; which is somewhat unusually high for one of his levels. Maybe that's only my biased opinion...

Your first solution sadly another needle trap would fix that backroute but also disable my solution... Let me know if you want to see my replay. I'm torn between enforcing your second solution or trying to come up with a better fix.

Manifest. I think I'm gonna leave this open to multiple solutions. It's decently challenging as is imo. I'm guessing as to the original solution;
I still have to spend more time on Conway's levels. I have maybe two more levels by Bryant I think I want to add.

a couple of notes in response to some comments from the past:
That Freezing Feeling; the time limit must be kept at 3:00 to enforce the intended solution as seen in his video. [you don't need two workers with 4:00]
With Crane's help I've backroute fixed some other levels; "Someone must help us" [I'm changing the title back to its original].
Also "Please Save Us" had an obvious backroute due to NL physics.
I've seen that the special graphics levels have already been redone so my earlier post was moot.

A fix for Locked and Loaded, and another new Bryant level "Evacuation"
note; this is actually his level "Barricaded" which is a repeat of "Evactuation" the only difference is the save req. The harder solution is also possible in the first. I picked the title "Evacuation" cause I like it better; but I'm open to disagreement.

I found Conway remade a selection of his LemEdit levels in Cheapo and got to thinking there is only one of his many levels in the pack... [and it happens to be an excellently puzzling level]

"Conways_unsolved" are levels I have not solved [and cannot guarantee are solvable in their current state] Like the previous levels I posted; they almost certainty are, it's just a question of are they compatible with NeoLemmix.  To be clear; And I know I'm repeated myself; its just so I don't get yelled at (or when I do I can point to this post). All the levels I upload are solvable unless stated otherwise; like in this case right here.
3 are Lemmix conversions, the other is a Cheapo remake (and a combination of "A Real Breakthrough and 5,4,3,2,1 Uh Oh! BOP!" a level that some may remember was in the first version of ROTL

I've also *finally* gone through this entire thread and collected all the updates/levels/replays and notes on feedback.

I kept forgetting to say this but when discussing solutions to levels openly here; please use the spoiler tag. It's the nuclear symbol button on the middle-right.

brilliant! thanks! Ugh I spent a decent amount of time on that one and couldn't see that; so clear in hindsight! Another well done puzzle imo.

Yeah Tilt does seem cheeky imo; took me a while to see that that was a possibility. [I kept trying to go up the left side and use the decoration to get up].

I think I can take at least those two levels [Wall to Wall and Stranger than Fiction] out of the "mysterious" category

I'm very glad I decided to put in the extra work to take this on again; turns out I've found a lot of good levels I didn't know about before. I'm feeling like this will be the best version of the pack yet.