Sega did release a playable demo for it about 2 years ago...
It's only 13mb and doesn't have sound/music/inventory...
But it plays perfectly...
It only has Forest 1 though...
Anyway, I've been trying to find myself a copy of this game too...
But no store seems to have it...
(I think it was released in Japan only, but it does have support for 7 languages or so... + some more that have been added later I think...)