Why does my Wii Nunchuck keep saying that it is disconnecting during gameplay?”
I’m not personally familiar with the Wii, but my suggestion would be to ask around, if possible, until you can locate someone with the same system and ask to borrow a control very briefly. Other than that, if returning the system to the store and asking for a refund is not an option, I would go to that store, buy a control, test it, and if it works keep it. Otherwise, return it for your money back. Sources: Just my opinion.