Lemmings 2 (PC) classic lvl 8: all saved

In this video from the game Lemmings 2: The Tribes (PC version) I manage to save all (59/59) lemmings on the classic level 8 using a way I found myself. After this level I also easily completed the levels 9 and 10 with 59 lemmings. Gold can be got from this level by losing less than 2 lemmings. The game was run in DOSBox 0.72 with 10,000 emulated cycles/ms.