By the way, Dodochacalo uploaded a new version on YouTube some months ago and changed some of the levels.
Yeah, I'm aware of this, though there hasn't been updates for a year now, the date of the last version can be seen
on his channel.
The updates are really minor, the most and perhaps only notable one is Devilish25: The Way to Go Up, which has a completely new structure due to backroutes of the earlier version of that level.
Nicely spotted with the arrows in Strato and Cumulus, möbius. There really are some flaws with them preventing lemmings to dig in some places!
Trident of Fire is great indeed, in addition to that unique oneway-wall setup, getting down to the exit platform has its finesses suiting for a moderate difficulty level.
Coward 17 - Lost in the CanyonLemmings: 20
Save: 20 (100%)
Release rate: 50
Time: 4
Skills: 1 climber, 8 builders, 4 miners
Good: The solution is so simple yet effective and pure, so one could even ponder why this wasn't enforced in any level in official games. It isn't just getting to the top of the snowhill, there's one twist how to prevent the lemming herd jumping down from the cliff like in the real-life misconception.
Makes a nice pair with its repeat level with similarish but yet cleverly different solutions.
Bad: Possibly a bit bland scenery around the canyon.