• On Nintendo Switch

1. On your Home screen, select the Nintendo eShop icon and the account you want to use.
2. Select the Enter Code option on the left side of the screen.
3. Enter the code. Select OK to confirm.

• On Nintendo Wii U
  

1. From the Wii U Menu, select the Nintendo eShop icon.
2. Select Enter Download Code. This is located at the top of the screen.
3. Enter the code.

• On Nintendo 3DS

1. Select the Nintendo eShop icon on the HOME menu.
2. Scroll left and select Add Funds.
3. Select the Redeem a Nintendo eShop Card option.
4. Enter the activation code, then select OK to confirm.