Take the NES controller and remove the 6 screws behind it. Don't lose the screws. Open it, and you'll face a green PCB, a chip and a cable. Don't be afraid of mid-80's technology, it is pretty simple
In this step, we are going to :
- Desolder the chip on the PCB
- Cut & desolder the cable
- Modify some of the case
1 and 2. Front and back of the simple PCB.
3. The top controller is unmodified and the bottom one if the modified case. I used my dremel tool to cut the plastic.
4. Other part of the NES case.