How do I recover and/or delete a game on 3DS?

I have two 3DS's and they both have Four Swords Anniversary Edition on them. The one that I used the most had some buttons stop working so I decided to transfer my system to the other one so I could actually play my games.
After the transfer I tried to play Four Swords again but the problem is it didn't transfer or at least it didn't transfer properly. I can't find Four Swords anywhere on the system but I suspect it's still there because I tried to transfer it again from an old DSi I have and it said I couldn't because Four Swords was already on the 3DS system.
How can I recover Four Swords on my 3DS and if I can't, how can I remove it?
I can't play it on my DSi because buttons on there aren't working either so I might have to remove the 3DS copy to transfer it from my DSi.
I can't download it from the eshop because it was discontinued.
Best Answer
unfortunately this wont be possible, unless it's available on the SD card.
If it is, you could try
be sure to try the following steps as well
- http://en-americas-support.nintendo.com/app/answers/detail/a_id/51/~/how-to-restore-save-data
- http://en-americas-support.nintendo.com/app/answers/detail/a_id/542/~/pre-installed-software-is-missing-or-deleted-%28nintendo-3ds%29
If that fails (because it no longer is in the store) you'll need to contact Nintendo directly. Don't worry, they have a great customer support!
be wary, games are linked to a nintendo network ID in some cases.. so that might be a part of your problem as well!
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Can you recover deleted games on 3DS?
Connect to the Nintendo eShop and re-download the game. If the SD card has been changed, or if the game was deleted from the SD card, the game will need to be re-downloaded from the Nintendo eShop.How do I redownload deleted games on my 3DS?
Complete these stepsHow do I reinstall games on my 3DS?
3DS eShop Download Guide - How To Redownload Games From The 3DS eShopDoes deleting a game on 3DS delete save data?
Important: Deleting a game or application that was downloaded from the Nintendo eShop will also delete the associated save data permanently unless you create a save data backup.How to get back a lost (or deleted) 3ds game *ONLY DIGITAL*
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