: Always scan .rar files with updated antivirus software before extracting them. Archive files from unofficial sources can sometimes harbor malware or unwanted scripts.
: This specific update for River City Girls 2 was notable for addressing performance issues, specifically improving the frame rate (aiming for 60 FPS on certain platforms) and fixing various gameplay bugs reported at launch. River City Girls 2 (NSP)(Update 1.0.2).rar
It sounds like you’ve found a download link for in NSP format (the file format used for Nintendo Switch games) along with the 1.0.2 update. : Always scan