: Ensure you have RocketRobotKorea.7z.001 through the final numbered part in the same directory.
: Split files like this are typically used to bypass file size limits on older web hosts, forums, or file-sharing platforms that may have capped individual uploads at a certain size (e.g., 100MB or 200MB). RocketRobotKorea.7z.006
: It contains a specific "slice" of the game's data. If you are missing this specific .006 file, the extraction of the entire game will fail with a "CRC error" or "Unexpected end of data." : Ensure you have RocketRobotKorea