The "Undertale DS ROM" you've heard about is actually a called UndertaleNDS . Created by the developer C3RV1, it's a free, open-source tool that repackages the assets of your legally owned PC copy of Undertale into a format that can be played on a DS.
There is no official Nintendo DS version of Undertale, meaning any "Undertale DS ROM download" you find online is either a fan-made homebrew project or a potentially harmful file.
The short answer is: no. Undertale was originally released on the PC, Mac, and Linux platforms, and later ported to consoles like the PlayStation 4, PlayStation Vita, and Nintendo Switch. Unfortunately, there is no official DS version of Undertale.
There are unofficial, community-made wrappers that allow you to run the official PC assets of Undertale on Android devices using custom touch controls. This requires you to legally own the PC version of the game to extract the necessary data files. Safety Guidelines for Retro Rom Hunters undertale ds rom download upd
You must own the game on PC. Locate the data.win file in your game directory (usually found at C:\Program Files (x86)\Steam\steamapps\common\Undertale\data.win ).
: Move the resulting ROM to your microSD card and launch it via homebrew software like Twilight Menu++ . Important Precautions
C3RV1/UndertaleNDS: Undertale port for Nintendo ... - GitHub The "Undertale DS ROM" you've heard about is
: Earn custom milestones while playing through the narrative. How to Legally Build the Undertale DS ROM
I understand you're looking for information related to Undertale on the Nintendo DS and ROM downloads. However, I need to provide you with a clear and responsible response rather than the article you requested.
A separate project by CooingMaxito that is a "demake" built specifically for the 3DS's higher resolution (400x240). PS Vita Port: The short answer is: no
: A Nintendo 3DS or 2DS running custom firmware (CFW) provides the best results, as the hardware is more capable than an original DS.
: A dedicated Nintendo DS port that recently reached a playable state for the first 10-15 minutes of the game. It requires users to provide their own data.win file from a legal Steam or GOG purchase to build the ROM. Undertale-3DS (CooingMaxito)
where you can safely look at indie DS projects, or would you prefer instructions on how to play the official game on a portable modern device
The where you can play the full game (Switch, PS4, etc.) Instructions on how to set up homebrew on your DS or 3DS Other fan-made Undertale games that are fully complete
This brings us to the final, and perhaps most important, point: the legality of all this.