What a fun surprise! Loved the unique presentation of this classic childrens game. The arm that follow the cursor is perfection. How did you code the check for correct piece placement? It feels both accurate and forgiving in a nice way.
Thanks for the feedback! It's done via polygon area collision detection, but with a bit of a interior margin, you can control how easy the detection is on how far into the interior the internal polygon is. Each object and mouth shape have their own areas.