How do you back up Animal Crossing Wild World save data?
If you’re playing off an official DS Card of Wild World, you can still back up – it’s just trickier, and you still need a flashcart. You’ll need to install a homebrew application on your flashcart to copy the saves off the DS Card. This program is called Eepinator, and you can find a link to it below. Simply install Eepinator onto your flashcart, boot into it, then insert your Wild World DS Card. Follow the prompts to copy your save-game. You can copy it back to your DS Card using Eepinator again, if necessary.
