Slightly off-topic - just wanted to pop my head in here to say I didn't realise some of this stuff still existed! Me and my elder brother, under the names McAleeAd and McAleeC (which later gained an extra 'h' on the end, though I think by that point I'd stopped doing levels), were the ones who created the "Madness" set of levels back in the day, along with many of the styles such as the Monkey IsLemms (still remember having fun doing the Lemming sprites on that one), the Shadow style (which we botched together from a combination of DOS and SNES Lemmings 2 screenshots with some recoloured parts of the red brick ONML style) and more. As I recall, the first style we ever did was the "Islanders" style my brother made, which was basically the Cheapo Beach style with different Lemmings/Exit and brown clams. I was quite a young kid at the time - don't even think I was quite at secondary school age, so this is going way, way back!
As I recall, I don't think Cheapo was available online when we started making levels - certainly if it was then it wasn't easily findable. All we knew of it was some screenshots on the creator's website. I seem to recall my brother eventually e-mailing the creator (who I see also frequents these forums - hi!) and asking if we could have a copy to play around with, though no idea if I'm remembering correctly there!
I recognise the "Ghost Pirate LemChuck" and "In a Dark, Dark House" levels from the screenshots. I also remember doing one in the Shadow style shaped like a massive "21", as well as a very tall red-brick level with both inverted and normal gravity. No idea if that's in the "Madness" set, though, and it sounds like NeoLemmix wouldn't support that one anyway. I seem to recall my design process usually involved making something I thought looked cool and fitting the gameplay around that, rather than planning out intricate puzzles, so apologies if anyone thinks my levels are a bit rubbish! Would love to have a crack at making some new ones now - will have to look into how to do things with NeoLemmix at some point.
Some of the stuff we did - such as the unfinished "Dust" style - was just messing around and never really meant to be distributed. I seem to recall doing a style based on the Lemmings concept animation (with the red Lemmings that have blue hair), but again that was just messing around, so I don't know if it was ever distributed. Truth be told, I have no idea how our stuff actually got online - I think my brother must have just uploaded a ton of the stuff we had laying around after finding a Cheapo level community in later years or something. Good job too, or all of that stuff would've been lost to time!
I'd be very interested in taking a trip down memory lane and seeing what we put together back then - I know there's a chunk of stuff that's been converted (and adapted) to work with NeoLemmix, and I'll definitely have to check that out at some point. However, I'd also be very interested in checking them out in their native Cheapo environment and experiencing them exactly as me and my brother created them back in the day. I don't suppose any kind soul would be able to point me to where I can find the game, as well as the "Madness" level pack and accompanying styles?