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

Anti-Cheat Download

2. After downloading, unzip the file to the desktop or another folder, then open Steam, find JOJO's Bizarre Adventure: All-Star Battle R, right-click the game, and go to Properties.  

3. Click on Local Files, then click Browse Local Files to locate the game’s root directory.  

4. Copy the unzipped file start_protected_game.exe to the Game folder in the game’s root directory to overwrite.  

5. After copying, click Play on Steam to start the game, then open the GameBuff software, click Add a BUFF to modify in-game.  

6. Note: To restore files, go to the game’s Properties, click Local Files, and click Verify Integrity of Game Files to restore, or back up start_protected_game.exe in advance.