Joystick Test Cartridge
This cartridge was used to test the various nintendo controllers and addons. When the proper choice from the menu is selected, a display screen appears showing the outline of two or four standard NES controllers. Each button, when pushed, lights up on the screen followed by a tone that is individual for each particular button. Items that could officially tested were standard controllers, NES Max, NES Advantage, NES Four Score and the NES Satellite. In reality, any controller could be tested, either licensed by Nintendo or otherwise.
There are three choices on the startup menu:
1. Normal Controller Test
2. 4 Play Controller Test
3. Return to Main Menu
It is entertaining to note that the 'Return to Main Menu'option just resets the cursor back to choice 1 since you're already on the main menu!