You can't get free games on Nintendo 3DS eshop you need funds for games.
You'd look on the DSi shop or the 3DS eStore, and look for any games marked 'free', then just download them to the console.
When you download a game from the estore, it should appear on the main menu, just touch it with the stylus to play.
No, it is a 3DS game, it can only do DS download with another 3DS.
No. The game is only out in Japan and Korea, and emulators are not the way to go. Just wait for the game to come out and get it.
No, the game is no longer available to download. It appears to be a limited-time download game that's made free every once in awhile.
The latest Pokemon game that has been released to the US is Pokemon Picross as a side game for the 3DS. It is available to download for free in the Nintendo eShop. Pokemon: Super Mystery Dungeon is just behind Pokemon Picross and it is available for the 3DS as well.
If you download a 3DS game or DSi Ware (not DLC) from the Nintendo eShop, the game will appear on the home menu for the 3DS XL.
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Yes. you just go to the eShop and download it for free.
Yes, you can. When you connect to the internet with the Nintendo 3DS, open the Nintendo eShop application. Under the category of 'Demos', you can download demos for free.
Currently, you can't get them. Nintendo is making new versions of both for the 3ds. The new Pictochat is going to be called Swapnote and will be available for free download in the store in December. The new Flipnote will be Flipnote Memo and will also be free for download in the store, but it's not announced when yet.
Nope. The 3DS does not include Pictochat. But a way to communicate with friends is to use Swapnote, a free download from the Nintendo eShop.