Although this project is not especially difficult, some mechanical and electrical experience is required such as knowing how to solder wires and using basic power and hand tools. It is not beyond the abilities of the average modeler. Recognize that both the computer chassis ground and the +5 volt power supply run through the controller cable; these lines must never touch each other while this controller is plugged into the computer with the power on. Care must be taken to connect everything properly so as not to damage the computer's power supply or the game card. Any risk taken in the use of this design is the responsibility of the user.