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.