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→Game Formats: updated eShop info
;DSi-enhanced retail cartridges: A regular game cartridge that is compatible with the older NDS models, but unlocks more RAM and features when used on the DSi (commonly it's just camera support, but may provide better performance with the extra RAM). Only a [http://www.rfgeneration.com/blogs/pdrydia/DSi-enhanced-titles-an-incomplete-list-1969.php couple of games] had this feature and is similar to how some late Game Boy Color games (mainly the ones made by Capcom or WayForward in the early 2000s) would offer additional feature if played on the Game Boy Advance. These games will still boot on any NDS emulators, but will be detected as if it was on the original DS and will not load any DSi enhancements. DSi-enhanced games will also have an animated icon when displayed in the boot menu of the DSi and the titleID on the cartridge will say '''TWL''' instead of '''NTR'''.
;DSi-exclusive retail cartridges: Retail cartridges that relies on the DSi hardware features. An error screen will show when attempting to load one of these games on a regular DS console(and by extension, emulators also). These cartridges where white instead of gray and only [https://en.wikipedia.org/wiki/Nintendo_DSi#Software_library five games] were physically released this way, either as launch titles or because they were too big to be sold as DSiWare (see below).
;DSiWare: Downloadable titles only available through the DSi Shop (discontinued as of March 31, 2017). They have a 16MB size limitation due to the small size of the internal NAND and a lot of interesting exclusives for the system were released as DSiWare. The Nintendo 3DS eShop also has had some DSiWare for purchase (which is used to be the only ''legal'' way of obtaining them now), though it uses a different file packaging format than the DSi. The system 3DS itself is also capable of running other DSiWare since the firmware used for backwards-compatibility is the same as the DSi.
All three formats can be converted to <code>.nds</code> format. Compared to regular DS games, DSi games have some additional header information that wasn't even correctly dumped in most early sets. Recent sets have since updated to the correct format. DSiWare dumps can exist in both <code>.nds</code> format and <code>.cia</code> format (for installation on a homebrewed 3DS).
Even though it's possible to convert these titles to <code>.nds</code>, when attempting to run these games on a normal emulator it will either show an error message (when attempting to run a DSi-exclusive title), or will crash on boot-up (when attempting to run DSiWare) due to missing encryption abilities and lack of DSi hardware support. DSi-enhanced games will run as if it was on a regular DS model.
On the DSi/3DS family of handhelds, the first two formats can be played on some select DSi-compatible flashcarts like the discontinued and expensive CycloDS iEvolution flashcart(which won't work on a stock 3DS unless you install custom firmware to whitelist it). As for the third type, some are only available for digital purchase at the 3DS eShop and are installed as apps to the limited TWL NAND. Users with custom firmware can also convert DSiWare to an installable <code>.cia</code> and even dump already installed ones back to <code>.nds</code>. Since both the DSi Shop has and 3DS eShop have closed, the only way of obtaining DSiWare on the physical original system is by [[Modding Consoles/Flashcarts#Nintendo_DSi|homebrewing]] your DSi and launching the <code>.nds</code> ROM through Unlaunch or [[TWiLight Menu++]].
===BIOS Files===
