Algodoo

If you add this little script to postStep in each pushbutton, the button text will look more 3D-ish:

_isDown ? {
textFontSize = 30
} : {
textFontSize = 32
};

Nice job on coding the flowchart.
I can see the possibility of using this type of decision tree for designing certain types of games, especially RPG.

Thanks. Done. Code is in the button _onMouseDown and _onMouseUp routine.