Results were mixed. The hedgehog does respond to the arrow keys, and the maze colliders seem to work, but the movement is floaty and awkward, and obviously the rotation is not right. I want precise, limited movement.
I found a pacman tutorial here that offered what I was looking for. I worked through that tutorial, and applied what I learned to HedgeMaze. The colliders in our maze required a lot of adjustment (they still don’t behave quite right, but the hedgehog gets stuck less often). I placed the acorns, and had Holly come back in for another round of testing.