geoo: "Just another one? He doesn't seem to think very much of my late-night rabbles."
Heh, I'm thinking more alone the lines of "Best quotes from IRC and Mumble" when I refer to late-night rabbles, I'm sure from time to time there's actually something brilliant and not some random joke. (Don't get me wrong, nothing wrong with random jokes.)
Anyway, it also turns out I apparently don't know what a sledge is, or rather, that it's the British spelling for "sled"
For some reason I'm thinking of some sort of
ice axe maybe because I'm thinking of the word "sledgehammer".
(And an ice axe may well have some merit here for climbing down the hill, too bad not an option here.)
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If that illustration has any accuracy, I think the lemmings are screwed no matter what you do.
In that illustration it looks more like a sheer cliff than anything resembling a traversable slope. I imagine with either a skier or a roller they will just fly off into the air and then suffer a long fall ending in splats.
The sled can't be better than skiing since it's basically the same principle as skiing (gravity and low friction) with less control (well, depending on how well they can ski I guess. I don't actually have any real-life experience on sleds, just that I can't imagine it working too well on a steep slope).
I think one can actually argue that normal walking is the safest option here. (!) Imagine the pixelation of the slope, this turns it into a series of vertical falls if the lemmings were to walk down it like in the actual game. If anywhere in the slope there is a fatal vertical drop, I'm pretty sure neither the skier nor the roller will traverse that successfully (especially the roller, will have to test the skier to see how steep it can tolerate but I just don't see it working on something so near-vertical) either, so you're no worse off than just walking. Whereas if there are no fatal vertical falls anywhere, then walking reduces the probability of flying off into the air to 0, compared with skiing and rolling.