Yes, the dream has finally come true. We can say goodbye to our flashcards and play our NDS Games directly from the 3DS SDCard. This has all been made possible by the efforts of ahezard, Gericom, Apache, Robz8, _catcatcat, and shutterbug2000 so huge thanks to them for this awesome work and also huge thanks for the nice Christmas present:3.
Now comes the catch though. For now only very few DS Games work and you won’t be able to save if you don’t own the real cartridge. This will be fixed in later updates though until we will have perfect compatibility 😀
The 3DS is fully compatible with Nintendo DS games, as well as its own games. And download select full 3DS titles, 3DS-exclusive downloadable games.
So what if you wanna try it? All you need is a CFW 3DS and TWLoader.
1. Download TWLoader.7z and extract it. Copy the CIA to your 3DS SDCard and the contents of the sdroot folder to the root of your 3ds SDCard.
2. Copy some Roms that you want to try to the nds folder on the root of your 3DS SDCard. Currently known working Games are:
Warioware: Touched
Mario Kart DS (if you have a physical MKDS card for saving)
Bomberman
GoldenEye: Rogue Agent
Space Invaders DS
MegaMan ZX
Yoshi Touch & Go
3. Install “TWLoader – TWLNAND side.cia” that’s in “sdmc:/_nds/twloader/cia/” to SysNAND (also to EmuNAND, if you have EmuNAND) and then TWLoader on your 3DS and boot it up. You can now try to run the Games from your SDCard and see if they work yet. BEFORE PLAYING ANY GAMES: Make sure you don’t have a ANY Cardtridge in your 3DS Slot. Currently if you save in TWLoader it will write the save on the Card in the 3DS Slot and it will overwrite any save that will be there if the save CHIP matches.
If you want to get the latest NDS-Bootstrap version without always having to use your PC and copy the files you can easily use ReBootstrap by Alerdy which will do the work of updating NDS Bootstrap for you ^^
Simply install the App on your 3DS and run it to update NDS Bootstrap and you can also directly launch TWLoader when it finished updating 😀
Most games, whether they are hombrew / freeware or otherwise, all end in the.nds extension. The.nds extension means that they are compatible with the Nintendo 3DS Xl and Nintend DS, DSi systems. You'll need to get the rom files in this.nds format in order to be able to use them on your Nintendo 3DS and R4 3DS Card. [/r/nintendo] List of DS Games with Download Play (X-Post from R/3DS) If you follow any of the above links, please respect the rules of reddit and don't vote in the other threads. ( Info / Contact ). Great games, free demos. There are some amazing free downloadable demos available on Nintendo 3DS family systems. Read on to learn more! R4i Gold 3DS Card is an original R4 Card for Nintendo 2DS/3DS/DSi/DS consoles. It’s a flashcard, you can use this card to play almost all the nds games. You just need to download the games rom then copy the rom to the r4i gold 3ds card.
If you want to have Banners for your Games you can easily create them with Forwarder3-DS
1.Download Forwarder3-DS.
2.Open it, and click on the TWLoader tab.
3.Select “ROMs on 3DS’ SD card”.
4.Make sure “Automatically set ROM path” is set.
5.Pick the ROM(s) that are on the SD card.
6.Click the button with the floppy disk to generate the .png files.
7.Copy the .png files to “sdmc:/_nds/twloader/bnricons/”.
If you would also like to have Boxarts follow these Steps:
-Download this box art pack. Credit to @Link_of_Hyrule.
-Rename the .png file to the same filename as the game, but with “.png” added to the end (ex. SD card: game.nds.png, Flashcard: game.ini.png).
-Save it to “sdmc:/_nds/twloader/boxart/” for games on the SD card, or “sdmc:/_nds/twloader/boxart/flashcard/” for games on the Slot-1 flashcard.
I can’t wait until we’ll have full Compatibility and Save support and hopefully somewhere in the Future Cheat Support for the Games 😀
Source: nds-bootstrap, TWLoader
It happens to all of us: We download a Nintendo 3DS app or game, use it a while, and then fall out of love with it. Since programs take up space on your SD card, just like they do on any storage device, you should get rid of the things you’re not using to make room for what you do want.
Deleting apps and games from a Nintendo 3DS is accomplished through the settings, more specifically the Software part of the settings. Once there, it's really easy to choose which app or game to remove, but not all apps can be removed, and don't forget to pick whether the saved data should be backed up first.

How to Delete 3DS Games and Apps
How To Download Ds Games On 3ds Cfw
Decide what you want to remove from your device and then find the app from the Software part of the settings.

Tap the System Settings icon on the HOME menu (it looks like a wrench).
Tap Data Management.
Choose Nintendo 3DS.
Pick the option called Software, and then select the game or app you want to delete from the 3DS. You can also choose Extra Data to remove any other data saved by that app.
Choosing Extra Data is how you remove everything associated with the app. To regain the most storage space, pick that option.
Tap Delete after selecting what should be removed.
Choose either Delete Software and Save Data or Create Save-Data Backup and Delete Software. If you choose the 'save-data' option, you can store the backup in a folder already on the device or in a brand new folder.
Be very careful not to breeze over this step. If you delete the software without making a backup, then all the data that has been saved by that app will be deleted and unable to be restored from a backup.
Can't Delete a 3DS App?
Cyclo Ds Games
It shouldn't be a problem at all to delete any app you download to your Nintendo 3DS. However, the option to remove an app is restricted only to those kinds of apps.
System apps and other built-in utilities cannot be removed from the Nintendo 3DS. These kinds of apps are required by the device and must remain on the 3DS, which is why if you chose one during step 4, you'll quickly find that you can't actually remove it.
Install Ds Games On 3ds
A few built-in apps and other tools that can't be deleted from the 3DS include Download Play, Mii Maker, 'Face Raiders,' Nintendo eShop, Activity Log, Nintendo Zone Viewer, System Settings, and Nintendo 3DS Sound, among others.