well its interesting.
But, a young child won't get it, an older child, ...may not care for the crayon motif.
But, then again, I find it interesting, and I definately don't care about crayons, so that may not be a big issue. I would, however, not be willing to pay even a dime for this sort of thing....as freeware, I would be willing to try it out and play it a couple times.