A couple I found.  Not sure whether to class them as bugs though and just different interpretations of the "rules".

BOMBER

- If a climber is assigned the bomber skill and he's climbing a wall when the timer hits zero, he instantly explodes rather than going through the "Oh no" animation.  Not a bug per se, but I initially didn't realise this and had to redesign one of my Lemmini levels to work under CustLemm due to timing problems.

BUILDER

- A Builder building to the left (I think) positions his bricks slightly 'behind' the Builder when compared to building in the other direction.  This makes "stretching" ladders very difficult in this direction, and not as efficient as when building in the opposite direction.

BASHER / MINER

- Bashers and Miners don't turn around if they strike metal or a one-way wall facing the wrong way.
- If a Basher or Miner hits metal or a one-way wall facing the wrong way, he will stop mid-swing instead of completing his stroke.  This in effect leaves a ledge in a tunnel that can then be used to climb onto a higher platform, including the Basher/Miner himself due to not turning around.

MISC

- As mentioned above, Lemmini is a lot more lenient in regards to whether a lemming is inside a trigger area or not.  This has the problem of making the traps' area of effect far larger and much harder to clear by, say, building over it or bashing under it. This actually makes Taxing 4, "Lend a helping hand", impossible to complete without being cheesy and going through the left wall.

- If 100 Lemmings have exited the trapdoor, and as you score 100% upon completing the level, all the text that appears after the appropriate figure on the status bar is shifted one character to the right as a result.  This is only a superficial bug but looks a little messy.

Every Lemming for Himself!!!

Correct answer.  H₂S, hydrogen sulphide, is the smell of rotten eggs, and the last one out is going to be a straggler!

I don't have a new clue at the moment - besides, someone else should have a go.

Hrm... shall we move on to another riddle? I think a fortnight is long enough!

...
Garjen (J. Gareth Moreton)
GARJEN09: Faithful Friends

Heh, that brings back memories.  I did make another non-Builder level named "3W" (GARJEN04, I think), but that was a fairly basic Blocker and Bomber affair.  I did realise quickly that non-Builder levels are tricky to make, and that was probably my only real attempt.  Despite the backroute, I feel it wasn't too bad an attempt - here it is in action: http://www.youtube.com/watch?v=SkXYB32_oAk" class="bbc_link" target="_blank">www.youtube.com/watch?v=SkXYB32_oAk (Hmmm, I have a thing for levels with time limits of 2 minutes!)

If I get the chance I might have another go at making a builder-less level.

ccexplore is onto something!

P.S. "The Boiler Room" is not correct.

Oh, simpler than I thought!

An easy one: Stragglers will emit H₂S.

Hmmm, a week's gone by, and I'm kinda stuck!  "Just a minute..." can't be right, can it?

I probably did post that one sooner than I should have done, so apologies for that.  I did think up the clue about a week ago, but was waiting for the current clue to be answered, and unfortunately that turned out to be Perseverance too - I was gutted!

Good job Proxima - spot on!  For your clue, I will have a guess at: "Heaven can wait (we hope!!!!)"

Nice thought process, but not correct I'm afraid.

Haha, I like your logic there!  Unfortunately, it is not the correct answer.

Sometimes they do.  With cryptic clues, sometimes you get them immediately, and other times it just eludes you.

Here's my next one:

Awful acne, perverse tenacity.

Time to get up.

"The Crankshaft" is the correct answer.

"Under four strokes I am whole, but broken with a sharp turn into a vent."

- Well, a crankshaft is driven by a four-stroke piston engine, hence the first part of the clue.
- If broken... break the word up... you have a sharp turn - a crank (like when you crank someone's neck) - into a vent - a shaft - hence crank + shaft = crankshaft.