How to View Previously Downloaded Titles - Nintendo 3DS Family
In this article, you'll learn how to see titles already downloaded in the Nintendo eShop.
Complete these steps
From the HOME Menu, select the Nintendo eShop icon and tap Open.
On the upper left of the screen, tap Menu.
Scroll down and select Settings / Other.
Scroll down to the section titled History, and select Redownloadable Software.
Select Your Downloads.
A list of previously downloaded titles will appear. Select a title, then follow the onscreen instructions to update or redownload it.