Mario Party 6

Mario Party 6 is the sixth game in the Mario Party series of board game-style video games by Nintendo and is the third title in the series made for Nintendo GameCube and was released in Japan on November 18, 2004; North America on December 6, 2004; in Europe on March 18, 2005; and in Australia on September 15, 2005. It is the first GameCube game to make use of a microphone add-on. Mario Party 6 is followed by Mario Party Advance.

Microphone Support
Microphone support has been absent for most of Dolphin's history, however added microphone support which should enable this functionality.