I did try this game on stream, but unfortunately I just could not get past the beginning. I could recognise that it was structured in a way to guide you towards the initial dolls, but unfortunately your own abilities and the extent of them were just not explained in a way I could appreciate, much less how it interacts with the other dolls.
There is definitely an idea here, but there aren't enough clues that I could notice to help you figure out how things work. Link to vod below if you like but I really didn't last long until I gave up.