While I didn't write nunchuck support into it specifically adding nunchuck support would be trivial. Include the one of the libraries that can be used for the nunchuck instead of the hackvision controller/nunchuck library and modify platformReadInput().
I have posted the latest version of the game on TVout google code page. This game requires the beta. I am not sure if I made a few minor changes vs the version posted on the hackvision site but I may have.
I do know that the guys behind the video game shield where planning on adding nunchuck support however I don't know what has happened to that.