Weird weird weird game. Although this is on my cab and I have indeed played every game on it (all 2250 or so), I have no recollection of this one--I think I wouldn't have revisited it had it not been for this competition. That's one great aspect of these competitions!
Unlike scramble & other such fly-through-the-caves games, you cannot crash into the ground, as you're rolling on it. That takes some getting used to.
12,790 after a few games. I'll post an image later.
Note that hiscore.dat does indeed work on this game.
Thanks,
-Jason