One of my all-time favorite games. The history of Lemmings (http://www.dmadesign.org/Lem_1.htm).
Great website, great game :)
http://www.lemmings.tv/
very Interesting stuff and I remember a demo of Walker.
I also remember a really crap lemmings game on the Saturn / Playstation 1, where they decided to transform it into 3D land, I found it very unplayable mostly due to a realy crummy camera system.
OT: Worms 3D and Worms Forts was not a good thing either, when you start changing a games foundations it then becomes something else with a similar title.
Towards the end of the life for the C64 games scene, they made a conversion of Lemmings and had music by Jeroen Tel.
That is great website(to read on how they made) of great game as I remember when I first play on Amiga 500 plus which was way back in 1991 :)