connect first gun to port 3 (C), second to port 4 (D) for enter to SYSTEM MENU press START+B on light gun (it is necessary to simultaneously release the buttons) Navigate in system menu - click START for select next option, hold START for enter calibration TEST MODE -> I/O TEST
Again a great job megavolt85, I am sad we are reaching almost the end of the list of games What could be your new challenge after that May be helping in recovering past online games although it seems very complicated not to say impossible