In Revolution I just found one by accident. I wasn't really going through it at this time.
5-2 Kriss Kross 26/30
glitch –direct drop to exit.
Technically speaking, I don’t consider this a glitch because there is a level in this game (Where is Caroll Vorderlem) in which this “glitch” is required to pass the level. Which is one reason I believe that this was never a glitch in any lemmings game, but that is arguable. I don't agree with that anymore; yeah it's annoying.
this also applies to the single skill challenge as well as the 1 skill per lemmings challenge.
-completely ignore the water lemmings
-Simply bomb 3 times through the top platform then once more on the platform directly over the blue balloon. Lemmings will fall directly into the balloon.
it’s also worth noting that the landing bomber glitch is not necessary since you can create a hole before he actually lands.