The more I learn - i need to play more custom levels!

Damn this was hard to work out!  So many red herrings in the level design and toolset.  I finally found a place where I can switch out a Basher for a Shimmier and have a couple of Bashers fulfil more than one role apiece.  Also found out the reason for the 5 Floaters!  Nice one Armani!

P.S. I wonder if blocking a Shimmier was inspired by my original plan for "Containment" before I scrapped it.  I can't remember if I told you or not regarding my plan with that.

If this is intended, this was absolutely evil, because I was stuck for so long on the "Denial set-up", swearing that it must be right, along with using a Bomber to help the climber get back up.  If that was all a red herring, you are an evil genius!

Seems like a very open-ended and straightforward level, not that that's a bad thing, but I can't believe that you've never made a Marble-themed level!

The new splatform makes it fairly obvious what you have to do, but working out how many lemmings you want ahead of the blocker is still a puzzle to work out, but the clue is in the number of lemmings you're allowed to lose (gutted that I couldn't find a way to save that lemming the builds the bridge from the left hand side!)

Used all the tools but saved 12 more than required and overall felt rather scrappy, so probably a backroute

I had a feeling that the "Denial" set-up played a role in this level, but couldn't figure out the exact configuration until now.  Unfortunately the up and down arrows really give it away.  I would suggest reverting back to the left and right arrows respectively if you can, possibly by modifying the terrain to the left of the left pillar slightly so a miner on the right-hand side of the pillar won't stop and will go through the floor and either splat or mine into an ice blower (thereby only saving 17 out of 18).

Very similar to before, but I have to now use a Basher to truncate the bridge.  If I don't use the Basher/Blocker trick, I will save just enough lemmings but have 2 Blockers left over.

Had a Climber and Builder left over.

This really gives a "How the Hell do you solve this?" air, and even when you get over the initial stunned confusion at where to even start, given you only have 3 destructive skills, there are a lot of red herrings and incorrect combinations in the tools you have left.  This is a good and intimidating puzzle, even if some bits of terrain feel a bit janky and uneven in places (like you can't easily tell that the 6 regular lemmings are Sliders, and the fact that some of the neutrals are Swimmers and Disarmers is unclear because the icon is camouflaged against the trapdoor graphic), but I understand that it needs to stop Shimmiers and Jumpers.

Also, I love how the disarmed snake trap has a spanner lodged in its mouth!

Level title is very fitting and very "Oh No! More Lemmings!"-esque.  Sometimes you just have to trust the timing!  I did save a Climber though.

A neat little puzzle that tests your skill management.  I possibly backrouted it as I had a Blocker and Basher left over, but the extra saved lemming was due to a Basher/Blocker trick