1. Click the URL below to download the anti-cheat file from the webpage:  

Anti-Cheat Download

2. After downloading, extract the files to the desktop or another folder. Open Steam, locate "JoJo's Bizarre Adventure: All-Star Battle R", right-click the game, then go to "Manage" → "Browse Local Files" to find the game root directory.  

3. Copy the extracted file `start_protected_game.exe` to the "Game" folder in the game root directory for replacement.  

4. After completion, click "Start Game" on Steam to launch the game. Once in-game, open GameBuff and click "Add a BUFF" to modify settings.  

**Note**: To restore files, go to game properties, click "Local Files" → "Verify Integrity of Game Files", or restore from a backup of `start_protected_game.exe`.