Maybe you could make something that changes the doll's state?Like, The normal one is Solid,Liquid makes the doll into little alive dots,Gas can randomly speed up, float and fly While the dots are farther apart,Same with plasma, Except the dots are farther Away? I now It's alot, But It's just A suggestion.
a very simple but complex game the variety of buttons for axes and a flight of stairs to the chandelier and a lot of plot twists,the beauty is too much to describe,100/5 stars