If you need help troubleshooting the installation, let me know:
The "ROMSLAB" tag indicates the file was hosted by a platform known for providing Nintendo Switch ROMs (NSPs) and updates. Such sites often repackage official updates into compressed Batman-Arkham-City-NSP-Update-1.0.1-ROMSLAB.rar
: The digital preservation or hosting archive site where this specific compressed package originated. If you need help troubleshooting the installation, let