[bobdylan1]

This I like. But why does moving the pieces up and down produce a sort of cylinder?

[DCoder]

Because that's how the Mercator projection distorts object size: http://en.wikipedia.org/wiki/Mercator_projection#Distortion

[fferen]

I think it's because the mercator projection distorts size, while the pieces try to stay the same (real-world) size as you move them. I didn't make the game, I just found it.