Can I transfer data to a new 3DS, and still have the data on the old one?
Yes and yes. You can save the data from your old 3DS' SD card in your computer so you'll have a copy just in case you'll lose it in the transfer process.
Is it possible to delete Super Street Fighter IV 3D save data on 3DS?
yes you go to settings>data management>3DS and delete what you don't want
How do I restart my save data on Yoshi's New Island on 3DS?
I’m assuming you have a physical cartridge.If you can't create a new save file in the game (if it’s modeled after the original Yoshi’s Island you should be able to) you can always go to System Settings. In there there’s Storage Settings which lets you manage data. Since I almost exclusively download my games I’m not entirely sure if you can delete save data from there but you probably can.If you just downloaded the game you can always delete it from the aforementioned Storage Settings and reinstall it from the Nintendo eShop. Just search it in the eShop and it’ll let you reinstall it for free.
How do i get pictures on my nintendo 3ds on my computer?
With an SD card (included with the system), you are able to save pictures and upload them to a computer by removing the SD Card from it's slot (after powering down your 3DS of course) and inserting it into your computer's SD card slot. You can also upload files to online photo websites through the 3DS internet browser, allowing for an easy download from your account on said website (Photobucket, Imgshare). An even better solution is Dropbox, whose "basic upload" option is compatible with the 3DS browser, and will allow you to not only upload your photo to your Dropbox account, but also save it to the installed Dropbox folder on your computer.
Is it possible to play a game downloaded from the internet, on MicroSD card on Nintendo 3DS?
To answer your exact question, No. The Nintendo 3DS has a SD card slot but you can't store games downloaded from internet on the default SD card which is used to store content/demos downloaded from the eshop.However, you can find Flash Cards online like R4i/Supercard which fit into the DS card slot of the 3DS and which need a microSD to function. You need to save ROMs downloaded from the internet (One 3DS game per microSD card last i checked, unless this limit has been bypassed in recent times) along with the Boot files for the card (available on the retailer's site) to operate. But be warned, Nintendo aggressively blocks Flash card hacks with every system update which might require you to keep updating the Boot files of the Flash card on each microSD card that you plan to use.You can find more detailed information online (gbatemp is a very good place that'll answer most of your questions) .Hope this summarized answer helps.
Is oversaving on Pokémon games bad for the DS or 3Ds game cartridge?
In theory, yes - like any NAND flash memory, the save storage in a DS/3DS game cartridge can only be written to so many times before it is at risk of failing. Eventually it will fail.In practice, no. At a minimum you'd have to save many, MANY thousands of times for this to even be a potential problem.
If I connect my Nintendo Network ID to another 3DS, can I redownload all of my games for free?
Based on the answers I’ve received from various sources (and Nintendo’s website), the process goes like this:Step 1. Begin a System Transfer Make sure you don’t select to delete what is on 3DS 2, and also, in cases with preinstalled software, make sure you have not created a NNID, or it’ll delete whatever was preinstalled.Step 2. When the transfer is complete, take the SD card from 3DS 1 and place it into 3DS 2.Step 3. If you want a bigger SD card, drag the data files onto your computer from the card, then place them onto the bigger SD card, and place it into 3DS 2.The whole process seemed a lot more complicated than it actually was.
Can you watch movies on the nintendo 3ds?
First of all I have a 3ds and yes YOU CAN DEFINITELY watch movies on your nintendo 3ds. Not just a typical movie but a 3D one, all you have to do is either have a video converting software or just download already converted 3d movies and videos for the 3ds, most of which can be downloaded from torrent sites. You should be aware that the 3ds has a 10 min video limit playback and recording, thus movies will be divided into 10 min parts. Basically, once you have obtained the necessary video files, just plug in your sd card to your pc's memory card reader and paste the video files at the DCIM folder located inside your 3ds's memory card. Some of the 3d movies for the 3ds that you can download from torrent sites are smurfs 3d, avatar, toy story 1, lion king, nightmare before christmas. Lastly, memory capacity might be an issue, because the default 2gb sd card might be insufficient especially if you have already other data files stored in it like games, videos, game saves, music, etc. Anyway, sd cards are cheap, you could even just buy a cheap 8gb sd card and use it for watching 3d movies and just eventually delete the movies once you have watched it.
How good is the Nintendo 3DS?
Okay, seriously I haven't played any system since Super Nintendo and right now I have a gameboy advance, that's all. I want the 3DS but want some things to be explained first. The wireless option, how good is it? Does it lag when you play? Can you play with other people in different countries or only those nearest you? Can you play against a specific person from another state? What accessories am I required to buy? Can I play games from GBA on it?