I think one major part in community history that you haven't mentioned yet is the challenges:
People put a lot of work into trying to save the maximum amount of lemmings or use the minimum amount of skills, sometimes exploiting crazy glitches in the process (like sliding or lingering blocker fields/moved trigger areas). If the discussion touches upon L2, then of course there's the surprising result that you can save every single lemming, the last find being the crazy pausing glitch abuse by ccexplore to save 100% on Sport 1.
People put a lot of work into trying to save the maximum amount of lemmings or use the minimum amount of skills, sometimes exploiting crazy glitches in the process (like sliding or lingering blocker fields/moved trigger areas). If the discussion touches upon L2, then of course there's the surprising result that you can save every single lemming, the last find being the crazy pausing glitch abuse by ccexplore to save 100% on Sport 1.
I don't smell any backroutes here!
Before I even discovered that, I was thinking perhaps the way is to bash and then bomb around the middle so to release the other Lix to get into the other Lix's basher tunnel. 
The timing had to be right and assigning the correct Lixes the skills is very crucial here!