Undertale port for Nintendo DS (src only, no copyrighted material).

Note: A bit of spaghetti code. Somewhaaat, actually. Tbh, a lot. Too much spaghetti code. Don't judge me :)

UndertaleNDS - 10 minute gameplay: https://youtu.be/n27m40_RAGQ

I recommend you run the game on MelonDS if you're using an emulator. It yiels the best results in terms of audio and performance.

To compile the game or use the rom, you will need to provide the data.win file from the original UNDERTALE game. This file can be located at C:\Program Files (x86)\Steam\steamapps\common\Undertale\data.win or C:\Program Files\Steam\steamapps\common\Undertale\data.win for the Steam installation.

Once you have located this file, you should copy it to the root directory of the project. This file will be used to get the copyrighted material. This way I make sure you own a legitimate copy of the game before playing the NDS port. Say no to piracy!

You should download the patch files (Undertale.nds.patch, tools.zip.patch, nitrofs.zip.patch) from the latest release and also copy them to the project root.

Once you have all files at the root of the directory (data.win, Undertale.nds.patch, tools.zip.patch, nitrofs.zip.patch) run ./patch_all.sh.

All this should result in the corresponding project files: Undertale.nds, tools (directory) and nitrofs (directory).

Note: Make sure to follow the installation instructions, which will extract nitrofs and tools, needed for compiling.

When you make any changes to the assets the game uses (located in tools/spr, tools/bg, tools/cutscenes, tools/rooms, tools/fnt) you should run python3 tools/all.py in order to recompile all these files to their corresponding rom files. Some other information used by the game is:

• Dialogues, in nitrofs/data/dialogue
• Cell calls, in nitrofs/data/cell
• Battle act texts, in nitrofs/data/battle_act_txt
• Enemy names, in nitrofs/data/enemies
• Item names and descriptions, in nitrofs/data/items
• Room names, in nitrofs/data/room_names
• Other .txt files in nitrofs/data

Then, you should run make to build the rom. Make sure to have devkitarm installed.

Toby Fox - Original Game
Cervi - DS Port