You did fine, don't worry. (Though I'm very curious now as to what the backroute is.)
Genesis - Sunsoft 15 - Exodus!50 lemmings
Save 100%
Release rate 1
3 minutes
5 climbers, 1 floater, 5 blockers, 4 builders, 1 basher
Good: A classic lateral thinking puzzle -- when I first came across it on ONML, took me a very long time to spot the method. Looks absolutely gorgeous redone in the "sand" style, with an atmosphere of stillness that fits in very well with the "get out of this place" theme.
Bad: Unlike in ONML, where it's positioned here it seems out of place.