On COD5 for Wii can you make the gun move from the nunchuck or only the Wii remote

the wii remote itself has a sensor on it therefore you are able to point it at the sensor bar and the result is the little finger thingy. The nunchuck does not have the sensor thing in it so therefore the answer to your question is no. That is the reason wii remotes cost 50 dollars because of complex wiring that goes through them and the nunchuck only costs 20.