haha basically i just missed a trick.
The fixed Fun 23 is also quite fun to play – i've attached a replay to show that it's possible to complete on 100%, but I've not tried to optimize my skill usage. I've ended up using 20 climbers, 1 blocker, 11 builders, 15 bashers, 5 miners and 1 digger. I'm fairly sure better could be done. It's worth noting that you can ignore 2 of the entrances on this level and still pass, as the requirement is 25%.
Fun 24 has become a boring hero/builder level – it took me 13 builders and no other skills. Mayhem 4 definitely won't be completable. It may be possible to finish the level with the minimum 66% (ie 20 lemmings) with your 20 climbers and use fewer builders.
Fun 25 is completable to 97% – had the same trouble with blockers and RR 99 as before, although this time you really can't dig to release the buggers. So I did 2 blockers, 3 builders and 4 bashers. You can probably reduce the number of bashers by utilising direct drop, in which case you'd use 2 blockers, 4 builders and 1 basher (or digger/miner, whatever, just to stop the guy building!)
Fun 26 is cool, because it is reminiscent of the solution to the original level. And a previously-decorative trap is suddenly ominous and threatening. I used 9 builders, 1 climber and 3 bashers. Could almost certainly reduce those numbers.
OK, stopping now because it's getting late, but I'll note a couple of things from the rest of the Fun and beginning of the Tricky set:
Fun 30 - omg... I'm now wondering if someone'll be able to Tame-20 that level or use the slider glitch, I have to say...
It's funny how levels that used to be boring builder levels are now piss-easy and vice-versa. For instance, Tricky 8 now only requires 4 (or maybe 3) builders to pass (where the entrance is now it is impossible not to lose 1, however, because if you get him to build as soon as he lands he will hit his feet on the ledge and turn back, which may mean that the "King of the Castle" is unpassable – I can't remember if you're allowed to lose any lemmings in that level, maybe 1 or 2 though which would be alright). You can also use a blocker on the Tricky level if 2 lemmings turn around, in order that you still only lose 1. After getting up that initial ledge, they'll simply walk to the exit.
Similarly, on Tricky 11 you only need 1 miner to get down to the exit, unlike the many builders that you normally need to get up (that said, I'm aware of the no-builder solution to the normal Tricky 11). The Mayhem equivalent would be good to see, though, because I think the only terrain removal skills are bombers – but I don't think you get floaters, so it may be impossible to get down from the top without adding skills.
Also, Bitter Lemming is quite fun. Where you've put the entrance, you don't need floaters. I found a quick-and-dirty solution that involves 1 digger (to make a trap), 3 builders (one to stop the digger, 2 to build up to the wall), and 50 climbers. There is almost certainly a solution that involves no climbers, though, because you could build to the left and bash through. Again, not sure if the Mayhem level could be completed, as I don't think you have enough builders or digging skills – there most of the skills are floaters, which we don't need anymore.