Are you trying to set this up on a specific device, like a , Steam Deck , or a RetroPie build?
Do unzip the individual game files inside the archive (e.g., pacman.zip ). jbs25.7z
: Many arcade games require a separate BIOS file (like neogeo.zip ) to run. If the game won't launch, check if the jbs25 set includes these or if you need to download them separately. Are you trying to set this up on
: Use a tool like Clrmamepro or RomCenter to scan your files. This will check if any files are corrupt or missing required BIOS files. Common Troubleshooting jbs25.7z