As for the games that uses the 'Famicom Controller 2
Microphone', here's what I know:
-Takeshi no Chosenjyo
-Legend of Zelda (FDS)
-Raid on BungelingBay
Does anybody know the of the microphone and where they would connect on an American NES? I have a spare set of Famicom controllers that I'm wiring to work on an NES, so I'd like to enable the microphone at the same time.
2012 Edit: Someone asked me about this today... I made a set of schematics
in Oct 2010, that would enable people to perform this modification as desired, although it is not as straightforward as merely connecting a couple pins. The basic version is just the internal configuration, while the later version also has the FC controller microphone schematic added to it, albeit not perfectly. (I never finished the capture.)
I should probably add it to the wiki.