We tried out some games at www.crazygames.com:
FaceNav Turorial: In this example we are using the settings below For keyboard emulation and then when the individual smiles they can go forward and if they open their mouth they can break. Moving the head left and right can allow for left and right hand turns. Users can center the controls by using the Voice command“ butterfly”.
Give it a try and let us know what controls you are using on what games you are using we would love to hear from you!