How do you play a downloaded game on a switch?

Complete these stepsLink a Nintendo Account to your Nintendo Switch console.Access the Nintendo eShop on the Nintendo Switch console and select your Nintendo Account. Purchase games and/or add funds in the Nintendo eShop. Download and start playing the games you have purchased.

How do I redeem Nintendo game cards?

What to doUsing a browser, visit ec.nintendo.com/redeem/#/Select Sign in and enter your Nintendo Account e-mail address and password, and then select Sign in again. Enter your 16-digit download code and then select, Next.Re-enter your Nintendo Account password when prompted, then select Redeem to complete the process.

How do I transfer games to my memory card?

How to move software between your Switch and SD card. Scroll down this menu until you get to Data Management, and enter that sub-menu. Select Move Data Between System / microSD Card. Choose which games and apps you want to move across, and then select OK to commence the transfer.