I am playing The Bones of Rosalinda by @agat right now and noticed that it does something similar to this system, as you can switch between the main character and the mouse…plus body parts!
I really like the mouse smell maze, it’s a very intuitive puzzle.
Some of the switching is a bit awkward (particularly the fact that you have to drop body parts if they are in your inventory before re-attaching them) but overall it is easy to switch characters and body parts. I’m really enjoying it overall.