Taking existing
maximum saved records into account, 82 lemmings reach "Four Play". This is normally a 100% level, but when starting with 82 lemmings, one has to be a blocker-bomber to hold the crowd back while another builds over the gap.
"The North Poles" then has to be tackled by a very non-standard solution with no crowd control at all. My best result is 54 lemmings saved.