3DS:Game modification

Luma3DS game patching

Main page: 3DS:Luma3DS/Configuration

Luma3DS allows for the modification of a game or application without having to patch the original files. This is done by redirecting the reading of files to a separate location containing the modified files. Because no original game files are actually being modified, this feature works with physical game cartridges. To use this feature, files must be placed in a /luma/titles/<Title ID>/ folder. You can get the game's title ID from here (cartridges), here (digital games), or from the FBI -> Titles menu. For example the Title ID for Pokémon X is 0004000000055D00, so modified Pokémon X files would be placed at /luma/titles/0004000000055D00/. Luma3DS's game patching supports the following files:

• External code.bin and exheader.bin loading

Patched code.bin and exheader.bin files can be loaded. Compressed .code files will not work with this feature, it must be uncompressed into a code.bin.

• IPS patching

IPS patches for code.bin are also supported, which contain only the changes to the original code rather than the entire code.bin. Patches should be named code.ips and placed instead of a patched code.bin.

• LayeredFS

Files within a game or applications romfs folder can redirected by placing modified files within /luma/titles/<Title ID>/romfs.

• Locale Emulation

Main page: 3DS:Setting game locales

Locale Emulation can be used to launch a title with different region settings than the system. Although Luma3DS allows for any region game to be launched, some games may crash if the system region settings are not supported. Luma3DS can use alternate locale information from a locale.txt file placed in the /<Title ID>/ folder for a title. Follow 3DS:Setting game locales for more detailed instructions.

Plugins

Main page: 3DS:Plugins

Plugins are add-ons that run with a game. Plugins generaly come in two types, 3GX or PLG. PLG plugins can be run using bootNTR, while 3GX plugins run using Luma3DS's built in plugin loader. 3GX plugins are generaly newer and should usually be used if given a choice. A large collection of PLG plugins can be found in the MegaNTR collection here or you can browse for Plugins on gamebrew

Cheat codes

Cheat codes, or Action Replay codes, are are instructions to edit values in memory that allow for games behavior and values to be edited. These can be used in a variety of ways, from invincibility, max currency, unlocking items, and more. The two main ways to use cheats are from Luma3DS's Rosalina menu, or CTRPluginFramework's Action Replay. Using cheats with CTRPluginFramework, or a dedicated cheat plugin for the game you want to play will usually be more compatible.

Rosalina menu cheats

To use cheats with Rosalina menu:

1. Place cheat files in plain text at either /cheats/<Title ID>.txt or /luma/titles/<Title ID>/cheats.txt
   • Cheat files can be generated using Checkpoint, or downloaded from the Sharkive repository.
2. Open the Rosalina menu (L+D-Pad down+SELECT by default)
3. Select cheats...
4. Press A on any cheats you want activated
5. Press B until you exit the Rosalina menu

CTRPluginFramework Action Replay

To use cheats with CTRPluginFramework:

1. Install the latest version of CTRPluginFramework-BlankTemplate (the .3gx file) using the instructions here
2. Place cheat files in plain text at either /cheats/<Title ID>.txt or in the same folder as the .3gx plugin as cheats.txt
   • A repository of compiled cheat codes can be found here
   • Or create your own cheats; a list of all code types supported by Action Replay can be found here
3. Open the Rosalina menu (L+D-Pad down+SELECT by default)
4. Press A on Plugin Loader: to enable it
5. Press B until you exit the Rosalina menu
6. launch your game of choice
   • The screen should flash another color to indicate that the plugin has successfully loaded
   • it will say Plugin ready! on the top screen when it is loaded
7. Press SELECT to open the plugin menu
8. Tap on Action Replay
9. Select the Action Replay codes you want to use
10. Press SELECT to exit the plugin menu

External links

Luma3DS/wiki/Optional-features
List of Rom Hacks from gamebrew
save editor 3DS applications from gamebrew