This is a cool idea, but it's a bit simple right now. I was confused at first when I was just given a pile of meat and some limbs, since I thought the monster that I was to be making would be more complete, but I guess they're okay with monsters that are just piles of meat stitched together. It wasn't immediately obvious to me either how to stitch together things, because the stitch button looked like a lightning bolt, but it should be a needle and thread instead?
At some point though everything started jumping around for some reason. Maybe everything was more alive than we thought?