Being able to play NES and SNES games on the Wii's Virtual Console is great
(Thanks Nintendo!), but it's much more fun to do it with the original controllers. (And
some games are much more playable like this).
This circuit makes it possible to use a NES or SNES controller on your Wii or Gamecube.
No microcontroller programming or surface mount component soldering required. All you need to
do is to solder the gamecube and nes/snes/n64 controller wires.
The circuit is small enough to fit inside an heat shrink tubing
or pvc pipe. It's even possible to fit the circuit directly inside
an original controller!
Button mappings and special button combinations are documented