Method 1 - yuzu/sdmc
Go to yuzu/sdmc and create a folder called ultimate.
Open ultimate folder and create another folder called mods.
Path: sdmc/ultimate/mods/
Drag and drop atmosphere folder to yuzu/sdmc and then place exefs folder in atmosphere/contents/01006a800016e000
Method 2 - yuzu/loadAlternatively, you can do this as well:
Go to yuzu/sdmc and create a folder called ultimate.
Open ultimate folder and create another folder called mods.
Path: sdmc/ultimate/mods
On yuzu folder, go to load/01006A800016E000, create a new folder (name anything), and drag and drop romfs and exefs in there.
Once you've set up ARCropolis and Skyline, run Smash Bros without mods to auto-generate arcropolis folder for legacy_discovery. After you launch the game and close it, drag and drop legacy_discovery to Yuzu\sdmc\ultimate\arcropolis\config\[numbers]\[numbers]
One final set for setting up, open Yuzu, go to Emulation>Configure..., then Debug and make sure that Web Applet is Disabled.
Installing Mods
In yuzu/sdmc/ultimate/mods and just like the actual Switch, you drag and drop a mod folder there.
Example:
Make sure that the content follows the correct file path
Path: sdmc/ultimate/mods/[Mod Folder]/[Game Contents]
whereas 20XXWare is the [Mod Folder] and stage and ui are the [Game Contents]
Open Yuzu Emulator and launch Smash Bros Ultimate.
Note: As of ARCropolis 3.10.0's release and onwards, if you install a mod in yuzu\load\01006A800016E000\[folder name]\romfs\arc, they will no longer load. So please move arc to sdmc\ultimate\mods for any mods that has that.
Example:
sdmc\ultimate\mods\arc\stream;
sdmc\ultimate\mods\arc\sound
sdmc\ultimate\mods\arc\ui
Installing Skyline PluginsIf you want to install Skyline plugins or modpacks with their .nro files, follow along to this guide. But do note that there might be a chance that those won't work under the circumstances. Make sure that you DOWNLOAD ALL THEIR DEPENDENCIES AND THE RIGHT VERSION OF IT. I will be using Hewdraw Remix as an example:
Download yuzu-package.zip (if not available, Ryujinx-package.zip)
Drag and drop everything on Yuzu/sdmc
HDR Only - Delete 010000000000013
As for others that were made for Switch,
Download the modpack
Drag ultimate and atmosphere folder on sdcard
For other plugins that don't structured,
Place any .nro plugin on Yuzu/sdmc/atmosphere/contents/01006A800016E000/romfs/skyline/plugins
Note: Please refrain from moving plugin.nro to romfs/skyline/plugin. That plugin is made FOR ultimate/mods/[mod folder] only. Also, do not put Homebrew apps in there as it will crash.
There you have it! You finally got mods in Smash Ultimate! It's somewhat useful to test your mods before releasing. Here are some screenshots taken from the emulator:
SMG4 and SMG3 (Redesign) by me
Waluigi Moveset by Challa
HDR by black_calculus and the HDR Team (Screenshot by Bede)
Training Modpack by jugeeya
Incompatible Skyline Mods(Note: This is a placeholder. If neither of the mods have issues, I will remove it shortly. Loading issues or crash might be because NRO files are outdated or incompatible with the current Smash update or current ARCropolis update or incorrect Smashline version)
On this list, I compiled reports from different users in both the Yuzu Discord Server and personal test and here are list of mods that are incompatible and their explanation:
-placeholder-
Go to yuzu/sdmc and create a folder called ultimate.
Open ultimate folder and create another folder called mods.
Path: sdmc/ultimate/mods/
Drag and drop atmosphere folder to yuzu/sdmc and then place exefs folder in atmosphere/contents/01006a800016e000
Method 2 - yuzu/loadAlternatively, you can do this as well:
Go to yuzu/sdmc and create a folder called ultimate.
Open ultimate folder and create another folder called mods.
Path: sdmc/ultimate/mods
On yuzu folder, go to load/01006A800016E000, create a new folder (name anything), and drag and drop romfs and exefs in there.
Once you've set up ARCropolis and Skyline, run Smash Bros without mods to auto-generate arcropolis folder for legacy_discovery. After you launch the game and close it, drag and drop legacy_discovery to Yuzu\sdmc\ultimate\arcropolis\config\[numbers]\[numbers]
One final set for setting up, open Yuzu, go to Emulation>Configure..., then Debug and make sure that Web Applet is Disabled.
Installing Mods
In yuzu/sdmc/ultimate/mods and just like the actual Switch, you drag and drop a mod folder there.
Example:
Make sure that the content follows the correct file path
Path: sdmc/ultimate/mods/[Mod Folder]/[Game Contents]
whereas 20XXWare is the [Mod Folder] and stage and ui are the [Game Contents]
Open Yuzu Emulator and launch Smash Bros Ultimate.
Note: As of ARCropolis 3.10.0's release and onwards, if you install a mod in yuzu\load\01006A800016E000\[folder name]\romfs\arc, they will no longer load. So please move arc to sdmc\ultimate\mods for any mods that has that.
Example:
sdmc\ultimate\mods\arc\stream;
sdmc\ultimate\mods\arc\sound
sdmc\ultimate\mods\arc\ui
Installing Skyline PluginsIf you want to install Skyline plugins or modpacks with their .nro files, follow along to this guide. But do note that there might be a chance that those won't work under the circumstances. Make sure that you DOWNLOAD ALL THEIR DEPENDENCIES AND THE RIGHT VERSION OF IT. I will be using Hewdraw Remix as an example:
Download yuzu-package.zip (if not available, Ryujinx-package.zip)
Drag and drop everything on Yuzu/sdmc
HDR Only - Delete 010000000000013
As for others that were made for Switch,
Download the modpack
Drag ultimate and atmosphere folder on sdcard
For other plugins that don't structured,
Place any .nro plugin on Yuzu/sdmc/atmosphere/contents/01006A800016E000/romfs/skyline/plugins
Note: Please refrain from moving plugin.nro to romfs/skyline/plugin. That plugin is made FOR ultimate/mods/[mod folder] only. Also, do not put Homebrew apps in there as it will crash.
There you have it! You finally got mods in Smash Ultimate! It's somewhat useful to test your mods before releasing. Here are some screenshots taken from the emulator:
SMG4 and SMG3 (Redesign) by me
Waluigi Moveset by Challa
HDR by black_calculus and the HDR Team (Screenshot by Bede)
Training Modpack by jugeeya
Incompatible Skyline Mods(Note: This is a placeholder. If neither of the mods have issues, I will remove it shortly. Loading issues or crash might be because NRO files are outdated or incompatible with the current Smash update or current ARCropolis update or incorrect Smashline version)
On this list, I compiled reports from different users in both the Yuzu Discord Server and personal test and here are list of mods that are incompatible and their explanation:
-placeholder-