The Cheapo conversion tool is on its way, and with that, tons of levels and styles will be converted to accommodate with Lemmix/NeoLemmix (and Lemmini/SuperLemmini, so mobius can add the special levels to the SuperLemmini version of Revenge of the Lemmings).
The first place that namida started was Essman's first game, Copycat Lemmings. It took a lot of work to convert the Copycat version of the Lemmings styles, but it all payed off, and the graphics now run smoothly.
The game overall is challenging and not recommended for beginners, since the levels quickly rise in difficulty, even in the Fun rank.
Download (Requires a version of NeoLemmix between V1.37n and V1.43n-F inclusive)
Since I do not have the images (can't dump them from the player, none of them uploaded to a website, etc.), you will just have to put down the level stats.
Fun 1 - Just bash10 Lemmings
50% (5) to be saved
Release rate 1
9 minutes
10 bashers
Good: A very simple way to begin the pack with just one skill.
Bad: I find the level to be awkward for a starter level when you have a small amount of lemmings, yet you can't let them fall to the left side. I find it annoying how some lemmings turn around the second tree before the basher even finishes. The save requirement I think is also quite high.