Robie Jr circuit bending

In order to move beyond my plug and play Arduino component syndrome I've decided to try and hack a robot with out removing it's exiting behaviors / circuit board. I've been analyzing the simple circuit of the Robie Jr to see if it is possible to initiate behaviors manually. Here is the initial setup where I am trying to do some circuit bending to see if I can toggle the behaviors by shorting parts of the circuit. So far so good...