Changing mesh during game play

I have a game on which I´d like to change an overlay object depending on mouse clicks. When a user clicks on some special objects, the object display on the overlay scene would change. Do I need Python to do that (changing meshes)? What script then? I know I could use layers, but I would need a few dozen objects, so available layers would not be enought.

Thanks.

Try the “Edit Object / Replace Mesh” Actuator. :wink:
Doc

Thanks, Doc!