: Likely shorthand for the game title (e.g., Arcade Archives or a specific title starting with "Arca"). VS : Indicates a "Versus" mode or version. SMB : Almost certainly stands for Super Mario Bros. NSwTcH : A stylized way of writing Nintendo Switch .
: Confirms this is the core game file, not an update (UPD) or downloadable content (DLC). ARCA-VS-SMB-NSwTcH-[BASE]-NSP-Ziperto.rar
: Downloading copyrighted games you do not own is illegal in most jurisdictions. : Likely shorthand for the game title (e