I read a comment explaining something wrong with Lemmings 2.
Out of interest, where did you read this comment? (Somebody somewhere else on the internet talks about Lemmings?
)
Classic and Egypt don't look at all similar IMO. They both have yellow rectangles I guess (so do Beach and Circus btw), but the textures are completely different.
Rectangular tiles are certainly preferable, but they aren't absolutely vital for gameplay, look at Cavelems for example. For building levels on the other hand, they are pretty much essential, unless you like stitching together hundreds of little tiles to get neat curves
. That's the developer's problem though
. I'm sure the Classic tribe would've been just fine with any (or all) of the other L1 tilesets. Choosing just one tileset would surely save a lot of work (as ccx mentioned) and gives a nice consistent theme.