Thanks for creating these excellent levels

!
Fun 30: A great level for finishing Fun.
Tricky 4: Another great level, but too hard for its position.
Tricky 6: A level that feels like it could become a great puzzle. Unfortunately it has an easy solution saving 100%.
Tricky 12: I agree with namida about the bomber placement.
Tricky 19: Nice little level - assuming you reduce the skill set... At the moment it feels very much like a Fun level.
Tricky 21: An excellent level. Far too hard for Tricky though, because one has so many possible approaches to this level. See my comment to Taxing 20 as well.
Tricky 26: I don't need the pixel-precision of namida, but my solution is nevertheless nothing you should have in Tricky. And please make it clear to the player that the direct drom from the middle platform is survivable (it's only 61 pixels). When I first reached this level, I spent quite some time planning how to get the lemmings down, when this is trivial and automatic.
Tricky 27: This is another trick that is very well-known. Contrary to namida and geoo, this is not one my favourite Tricky levels (though it's definitely not bad).
Tricky 30: A very long level and I need every of the 20 builders (and during my first attempt I was even 1 builder short and had to do almost everything again). Together with Mayhem 28 my least favourite.
Taxing 2: A very good level. But you should raise the save requirements to remove the backroute I attached (assuming it is indeed a backroute).
Taxing 7: very generous on the save requirements.
Taxing 9: A good level - for early Tricky. It is easily solvable with only 2 climbers, 2 floaters, 1 blocker and 1 miner.
Taxing 12: One of the very few builder-heavy levels I ever encountered that I really liked.
Taxing 13: Good level, even if it's not really hard to save 90%.
Taxing 14: I can't agree with namida's remark - I had over 1 minute left.
Taxing 15: Way too easy with a great deal more skills than needed.
Taxing 17: I guess I found the same backroute as namida.
Taxing 19: Another very good level that is easier than placed. I used only 4 skills.
Taxing 20: This level is easier than Tricky 21 and I don't think the beginning is that great...
Taxing 22: Though not completely original, it's always nice to see such a level again.
Taxing 23: Absolutely unique and excellent level!
Taxing 24: Contrary to namida, timing is an issue with my solution. Nevertheless my basher usage is a strong indicator that I found a backroute.
Taxing 25: A very very good level.
Taxing 26: Sorry, but this level is straight-forward and not interesting at all.
Taxing 27: Feels like a slight variation of the intended solution.
Taxing 29: A very good idea and my solution doesn't rely on the glitchy behaviour namida mentiones.
Mayhem 1: Again a direct drop works, though it is not necessary. Whenever I want to remove this possibility of a direct drop, I try to place a small terrain piece behind the exit directly over its trigger area. Then the falling lemmings usually splat (as they should) instead of jumping into the exit.
Mayhem 2: One of the three best levels in your pack! Even if it didn't take me long to work out the solution.
Mayhem 4: Fortunately one can save 90% and thus reduce the amount of bomber timing.
Mayhem 5: So much unused terrain about... I really wonder whether my solution is intended?
Mayhem 8: Way too easy for Mayhem and more or less staight-forward.
Mayhem 9: Even if your level isn't the first that features this strategy, it was very enjoyable.
Mayhem 10: Not a fan of this one.
Mayhem 14: An absolutely excellent level

! But please remove the backroute I attached as a second solution.
Mayhem 15: And again a very good idea, even though the first half was pretty uninteresting.
Mayhem 17: I already solved the first version of this level in this way.
Mayhem 19: Digger placement was slightly annoying, but otherwise a good level.
Mayhem 20: I likely backrouted this one.
Mayhem 21: ...and another likely backroute.
Mayhem 22: Together with Mayhem 2 and 14 the best level! I never needed pixel-precise skill assignment anywhere.
Mayhem 23: Another backroute.
Mayhem 25: Apart from a very precise bomber placement, this level was much fun, though easier than its placement.
Mayhem 26: A few good ideas, but too heavy on builders.
Mayhem 27: An excellent mulit-tasking level! As with Tricky 26, please make sure that the player doesn't mistake the drop on the very right for a splatting fall.
Mayhem 30: I guess this is more or less the same relatively easy solution namida already found.