Timid 5: The Rickroll Level - Hah, it's legendary, even Flopsy made a level in SEB Lems with this tileset.
Timid 6: The Rebound - An interesting talisman solution, I went for it.
Timid 16: Locked Out! - Boss level music I guess? Yeah, it was a hard one for Timid!
Dodgy 1: Boost Jumper - Yeah I fiddled around with this a while to get the talisman.
Dodgy 6: Seven-Way Security - I don't remember this from the beta testing, maybe a bit newer level? Anyway, it's a delightfully clever puzzle.
Dodgy 10: The Duck Level - It's hard, I think I didn't solve this in beta testing phase. The key to victory is to realize that those steep slopes with 7 pixel high walls are possible to ascend with putting one pixel of a building brick there.
Dodgy 12: Extra Skill Required - It's genious, wasn't that quickly solved from me!
Dodgy 13: Speak of the Lemming... - Another large-ish roadblock in Dodgy rating after The Duck Level, I tried quite a bunch of stuff before using this two-miners-trick at the beginning, pretty nifty, not sure if intended?
Dodgy 16: Critical Point - Okay, I would get the talisman using builder and basher-builder-midstroke for both of those walls at the left, and not using builder-blocker-builder at the lower level.
Rough 2: A Perfect Storm - This was a toughie, no spare skills remained at all, being optimal with the left hatch at the beginning proved to be challenging!
Rough 3: System Shock - I don't have a slightest idea how there could be enough builders, except for this very backroute-feeling solution.
Rough 6: The Lemming Redemption - I skipped this one and solved it as fourth last level in the pack. It's finding about the correct digger spot and release rate. In the end I found this simple solution.
Rough 8: They Say A Hero Will Save Us - A new level for me, wasn't around in beta testing phase, maybe? Or maybe it was in Fierce that I didn't really play that much back then.
Rough 11: The Nyancat Level - I remembered this to be too hard for me, but I solved this now very straightforwardly, I think it's easier than The Duck Level.
Rough 14: Shmooth Shailing - I didn't solve this intendedly in the beta testing phase. Now this level contains lots of steel and it lead me to this faller-bomber solution!
Rough 16: Plan 10 From Outer Space - I skipped this one and solved it as third last level in the pack. A good boss level, I didn't know what to do at first!
Fierce 3: The Soft Scale - These really hard Sky levels among System Shock and Shmooth Shailing that I didn't solve 4 years ago, this is phenomenal! I don't know if basher-cancelling-miner-trick is intended, but but woow what a level, I've now used to release basher-midstroke-blockers with bombers because in NeoLemmix it isn't anymore possible to release blocker with a digger turning around from him.
Fierce 4: Lost In Translation - I had this solution in the testing phase, but due to time limit it didn't work. My replay lasts for 11 minutes in this, because of the bunch of guys going to the teleporter.
Fierce 5: Unpredictable Reaction - This is awesome. The trick is GREAT. IT'S A GOOD LEVEL.
Fierce 6: Double-Crosser - Never solved this intendedly during testing phase, and I remember this level being even in the Rough rating at first. I skipped this and solved it second last in the pack. There's lots to try, my solution was a time-cruncher. It's HARD.
Fierce 8: No Time To Die Even Now - I feel backrouting this using only one hero lemming and saving over 30 seconds and, well, yeah.
Fierce 9: Curiosity Killed The Lemming - Yeah it's hard because of the timing issues. It's a timing level! Uh oh.
The rest of the Fierce I hadn't even seen before (except for Crossover Arena).
Fierce 11: Lem At Your Own Risk... - Was actually easy-ish feeling compared to levels around it, I wonder if my solution is intended.
Fierce 12: The "Lemming" Experiment - I didn't get one pick-up skill, this might be a backroute.
Fierce 13: We Lem In Peace - Lovely, just lovely bomber trick with the climbers, yet I saved extra lemmings and skills so I wonder if it's intended.
Fierce 14: Crossover Arena - Goddammit, finally solved this! And the solution even isn't even remotely unfair, I just didn't realize to dig the left side of the wall.
The talisman text probably makes the level easier, because it tells that 3 of the skills aren't needed.
Fierce 15: You Knew It Was Coming... - The beginning is okay, but the real deal is that house-thing at the right that you need to ascend, woow!
Fierce 16: The Final Stand - I solved this last, it's tough and quite a good final level like all final levels seem to be in your packs.