How do you get the second remote working?

Answer 1

First you need to sync it with the wii console. Open the panel on the wii console and you'll find a sync button there, and open the battery door on the remote and you'll see a sync button there as well. Click on both of them together and that will sync the remote with your console. You will only need to this once.

Then in each game you play you have a way to add a remote (by clicking on buttons 1 and 2 together).