Apparently Oh No! More Lemmings was released as two different versions - an addon-disk which required you to have the original Lemmings to use, and a stand-alone version which could run just fine on its own.
It's clear the latter version is the most commonly-spread version on the net, if not the only version of the game spread on the net.
So I was wondering if anyone knew where the rarer "addon" version could be found?
As you can tell, I like the thought of collecting rare editions of some Amiga releases...