It's a really good game. A modern twist to the adventure game genre, with an awesome storyline and soundtrack and, of course, since it's on UbiArt, a charming art style.
We just finished it on the PS3.

Related to Spine:
Since it's an adventure game, it involved the character interacting with a lot of items, lifting them, turning them, pulling and pushing things.
In this sense particularly, they showed off how they were able to solve the problem of having to draw different parts of the skeleton in front of and behind a separate entity.