This is a "Nintendo Submission Package," used for installing games, updates, or DLC on the Switch.
Resolved an issue where loading screens could hang or stop if network communication was lost or the console entered sleep mode. TAIKONOTRFES-(USA)-NSwTcH-NSP-Update120-Ziperto...
Taito Milestones 4 Switch NSP/XCI [UPDATE] Download - Ziperto This is a "Nintendo Submission Package," used for
Ensure your base game matches the USA region mentioned in the filename. USA and European DLC are often cross-compatible, but Japanese/Asian versions are generally considered separate titles. This is a "Nintendo Submission Package