If you’re like most Nintendo 3DS owners, you probably have a few accounts - one for your primary gaming use, another for your kid’s games, and maybe one for your friends. But what if you want to change all of your accounts at once? Here’s how to do it. First, head to the Nintendo 3DS home screen and select “My Nintendo.” If you don’t have a My Nintendo account, create one now. Next, select the “Accounts” tab on the left side of the screen. You’ll see a list of all of your current accounts. Select the account you want to change and press the button on the bottom-right corner of the screen that says “Change Account Info.” You’ll be taken to a new screen where you can choose which games and features are available for that account. Select everything you want for that account and press OK. When you’re done, press A on the bottom-left corner of the screen to return to My Nintendo. ..