They're all level packs for Cheapo.
You can find all my old packs here:
http://lemcrazy370.tripod.com/stuff/level.htmThe only exception is Lemmings Plus 3, which can be found here:
http://207.58.177.175/~geoo89/lemmings/lp3full.zipYou *should* be able to use the older style files with LP3 even though it contains new ones. The only difference is the music.
Also note that a file "generic.sty" is missing. Although you'll get the wrong music, you'll be able to play the levels by renaming (or rather, copying, to avoid the original file being missing) the Orig-Columns.sty to generic.sty.
Rather than just being hard the whole way through, it works like the original games, having several difficulty rankings, each one harder than the last. While in LP1, this is quite erratic and there are many harder levels on lower difficulties, LP2 and LP3 are more standardized. That's not to say LP1 doesn't have it's good levels at all.
Some of the best levels IMO:
Lemmings Plus 1:
Return of the T (I consider this the ultimate level of LP1)
Don't Shoot My Lemming
Lemmings Plus 2 (note: a lot of the Lemmings Plus 2 levels are just taken from the Ultimate Challenge packs):
Oblivion (and to a lesser extent, the Oblivion clones, which basically use the same trick but add in other elements)
Death In All Directions
Lemmerixo (I consider this the ultimate level of LP2)
Lemmings Plus 3:
The Final Countdown
The Last Laugh
Lemmings From Beyond The Unknown
Warped Out
To The End! (I consider this the ultimate level of LP3 and possibly the most challenging level I've ever made that isn't in any way "unfair")
For those who've never played Oblivion or an Oblivion-based level, I strongly urge you to give it a go. The trick used to beat it (which is actually a genuine trick, and not some kind of obscure glitch) is a genius one that, at the time, even some of the most experienced players didn't think of trying. I don't think anyone actually ever managed to solve it until I hinted at what the trick was.