[Quick Tutorial] Changing RetroArch Cores on Newer Classic Mini Apps

Newer versions of the Classic Mini Collection allow advanced users to change the core used to emulate their games. Here is how to do it:

1. Download the New Core

First, you need to acquire the core manually or via RetroArch’s built-in tools.

• Open the RetroArch menu by pressing F1 during any game.

• From the Quick Menu, go back one level and navigate to: Main Menu > Online Updater > Core Downloader

• Note: If you don't see the "Core Downloader," enable it under: Settings > User Interface > Menu Item Visibility

2. Edit the Configuration

Once the new core is downloaded, you need to tell the app to use it.

• Locate the settings.json file (found in the same folder as the main .exe).

• Open it with a text editor (like Notepad).

• Find the line "coreFilename" and update it with the name of your new core.

Example (NES Mini):

CURRENT: "coreFilename": "nestopia_libretro.dll"

CHANGE TO: "coreFilename": "fceumm_libretro.dll"

3. Save and Run

Save the .json file and restart your app. Your games will now launch using the new core!