Only stackers can survive this: Intended.
Glide if you love lemming: Neither is intended, but I will probably do only mild modifications and keep the level as an easier open-ended level.
Let's Misbehave: Backroute.
Smeagol's Dream: Another backroute.
753: Ok, seems I have to throw the whole level away and start anew creating another level using the trick I intended to be used.
Temple of Hathor: Intended. The basher is just a decoy.
Serpentine Way: Yes, a backroute. Fortunately the non-solid sides in the upcoming NeoLemmix versions will take care of this backroute.
All the Nines: Originally the level had 9 of all the new skills, so disarmers got included for sake of consistency. Stoners got removed, because they made the level trivial and I simply forgot about the disarmers. Expect to not see them again in new versions.

Stonerhenge: Glaring backroute

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