Things You'll Need
Instructions
Turn the NES cartridge over to expose the backside. You'll find three screws on the back of the cartridge.
Remove the security screws using the 3.8mm security screwdriver. Keep the screws close by or in a safe place, such as a storage cup, for when you put the cartridge back together.
Grasp the back cover of the NES cartridge with your hand and lift it to remove it from the base. Inside, you'll see the game chip and adapter that connects to the NES game console.
Place the back cover back onto the cartridge base. Insert and tighten the three security screws with the tool when you are ready to close the cartridge.