Quantity   Component name
1 × Arduino Mega 2560 The Arduino platform I'm currently using.
4 × SNES Female Controller Connector Controllers plug in here... (Sourced from raphnet-tech.com)
1 × SNES Male Controller Connector (Need all 7 wires) Plugs into the SNES... You may be able to mod an old controller to get this. (most controllers use only 5 wires)
5 × Pullup Resistors - 10K Ohms It works without this, but there may be problems when controllers are unplugged.