How to Delete the Training Modpack in SSBU (Super Smash Bros. Ultimate)

If you've been using a training modpack in Super Smash Bros. Ultimate and want to remove it — whether to free up storage, switch setups, or return to a clean install — the process isn't as simple as dragging a file to the trash. Modpacks in SSBU interact with your Nintendo Switch's file system in specific ways, and understanding what you're actually deleting matters before you start.

What Is a Training Modpack in SSBU?

A training modpack typically refers to a collection of mods designed to enhance SSBU's built-in training mode. The most widely used version adds features like frame data display, in-game hitbox visualization, SDI (smash directional influence) practice tools, and combo counters — features the base game doesn't offer natively.

These mods are installed on modded (CFW) Nintendo Switch consoles using a tool called Atmosphere, which is a custom firmware (CFW) environment. The modpack files are loaded through a mod loader, most commonly ARCropolis, which hooks into the game's file system at runtime.

Understanding this layered setup is key to knowing what "deleting" the modpack actually means.

How the Modpack Is Structured on Your Switch

When installed, the training modpack places files in specific directories on your Switch's SD card. The typical file path looks something like:

SD:/atmosphere/contents/[SSBU title ID]/ 

Inside this folder, you'll find subdirectories and .arc replacement files (or ARCropolis plugin files) that the mod loader reads when the game launches. Some modpacks also include plugin files (.nro or .prcx files) stored in:

SD:/atmosphere/contents/[title ID]/romfs/arcropolis/ 

or a similar ARCropolis-specific path depending on the version installed.

Nothing is written directly to the Switch's internal storage or the base game's data — the modpack works by intercepting file reads and substituting modded files at runtime.

Step-by-Step: How to Delete the Training Modpack 🗑️

Option 1 — Delete the Entire Modpack Folder

The most thorough approach:

1. Power off your Switch completely (not sleep mode).
2. Remove the SD card and insert it into a PC or Mac using an SD card reader.
3. Navigate to SD:/atmosphere/contents/ and locate the folder with SSBU's title ID (01006A800016E000 is the standard title ID for the global version).
4. Delete the folder or, if other mods share that directory, delete only the training modpack's specific files (usually labeled clearly within the romfs subdirectory).
5. Reinsert the SD card and boot your Switch.

Option 2 — Disable Without Deleting

If you want to temporarily remove the modpack without permanently deleting files:

• Rename the modpack folder with a prefix like _disabled_ so ARCropolis ignores it.
• Or use ARCropolis's built-in toggle (if your version supports it) to disable specific mods from within the game or the mod manager interface.

This is useful if you play both competitive online (where mods shouldn't be active) and offline training sessions.

Option 3 — Reinstall SSBU Clean (Nuclear Option)

If your game is behaving unexpectedly after mod removal, or you suspect deeper file conflicts:

1. Delete the SSBU title folder from SD:/atmosphere/contents/.
2. In the Switch's System Settings, go to Data Management and delete SSBU's save data or redownload the base game if needed.
3. Ensure no residual ARCropolis config files reference deleted mods.

This is rarely necessary — the modpack doesn't touch internal storage — but it resolves edge cases.

Variables That Affect Your Removal Process 🔧

Not every user's situation is the same. Several factors determine exactly what you'll need to do:

If you installed your modpack using a modpack manager or installer script, that tool may also have a built-in uninstall function — check its documentation before manually deleting files, as it may handle cleanup of config files you'd otherwise miss.

What You Won't Lose (and What You Might)

You will not lose:

• Your SSBU base game data
• Online or offline save data (replays, tags, GSP) stored in internal memory
• Any DLC you've purchased

You might lose:

• Custom mod configurations or settings tied to the modpack
• Other mods stored in the same folder if you delete the entire title directory without checking its contents first

Always back up your SD card before making changes to mod directories — a simple folder copy to your PC takes minutes and protects against accidental deletion.

The Spectrum of Users Doing This

Players removing training modpacks fall into a few different camps. Some are competitive players who used the modpack during offline practice and want a clean setup for online play. Others are casual users who installed the modpack experimentally and want to restore their original experience. A smaller group is mod switchers — people cycling between different training tools or updating to a newer version, where removal is step one of a reinstall.

Each of these situations calls for a slightly different approach: full deletion, temporary disabling, or selective file removal. The right path depends on whether you're done with modding entirely, planning to reinstall something else, or just toggling functionality.

What that looks like in practice — which specific files are present on your SD card, which version of ARCropolis you're running, and whether you have other mods you want to keep — is something only your own setup can answer.