![](http://2.bp.blogspot.com/_V48_SiJm-_g/RsPTxLQ8MyI/AAAAAAAABC4/sVQqH1Zwl44/s320/sneswii.jpg)
With the Nintendo Wii there is support for the old NES, SNES and N64 games.
![](http://1.bp.blogspot.com/_V48_SiJm-_g/RsPTm7Q8MxI/AAAAAAAABCw/XpHgFjiLuz0/s200/classic.jpg)
Here's an Nintendo 64 Controller guts before being installed
![](http://4.bp.blogspot.com/_V48_SiJm-_g/RsPUIrQ8M0I/AAAAAAAABDI/sO5NKZHi364/s200/n64wii1.jpg)
He did this with a little more technical knowledge then I have so I'll leave in his words:
Because of the complexity of the Gamecube's controller protocol, it's not
possible to build a simple conversion circuit without using programmable
components. For this project, I used an atmel Atmega8 microcontroller. Maybe
it's a little overkill, but using this chip allowed me to use my Multiuse tiny 1
PCB. Given the small size of this circuit, it's possible to fit it inside an
original controller.
Here's a video of the N64 Controller to Wii Mod in action
He has a full how-to with loads of pictures, the programming firmware and sourcecode all on his site so go check it out.