Pt 6
There should be a Cookie Cutter tool. This tool would act like this: there is the option of choosing square or sphere for the eraser. Then, when you use it a transparent sphere/square appears in the middle of your screen and everything it touches gets erased. Example: player makes a square, and then uses the cookie cutter on the square configuration, and moves the cutter square into the other square, creating the indentation of a square in the non-cutter square.