I like this concept a lot, and the way the levels keep adding new things to consider (like using blocks that are kinda understood as just part of the scenery at first, or dealing with the skeletons in later levels) was challenging but never overwhelming. I the only weak spot I found was that some levels where you have to do a lot of building when you've already figured out the solution can feel a bit like busywork, but overall it's a pretty great game.