0104 "Water Maze 2" - Why the "2" in the name?
0111 "Bright Colors And Funky Tunes" - Great to see this music make a comeback!

0119 "Silenced by Shining Lights" - This was one of my favorites so far!
0121 "Little Wilma" - Maybe I'm overlooking something, but I felt this level would've worked just fine even without the traps and the disarmer.
0126 "The Circular Lemming Reactor" - Did I backroute this one? If not, it's weird that it's impossible (as far as I can tell) to not get the walker pickup skills, yet they don't need to be used. They would be useful if a lemming is facing the wrong way upon reaching the bottom - except I had a spare platformer that would've been just as capable of solving that issue for an unlimited number of lemmings, rather than the limited number the walkers could help (though as I had no lemmings go the wrong way, I didn't need that either).
0127 "Dr Do-ping's Hideout" - Another especially great one.
0128 "Lamentations of the Lemmings" - It took me quite a while to notice the lattice structure of the wall could be used to gain height. Once I figured that out, this level was pretty straightforward.
0129 "Bring In The Siege Engineer" - I smell a backroute on this one.
0132 "McLemming's Climber Course" - I smell an even bigger backroute here.
0133 "At The Breaking Point" - A very good level, but I also felt this was a huge difficulty spike compared to the rest of the rank (aside from 0141).
0136 "Bloom and Doom" - If this is intended, it's very nicely hidden.

0138 "Sunny Side Down" - This level was extremely easy compared to the ones around it. A good level, but a very easy one.
0140 "Fall Like An Egyptian" - Another particularly great one.