If your file is for the older title, Version 1.2.0 was a major content drop:
"Auto" mode was enabled as an option for two-player offline play in Taiko Mode. Online Ranked Match Enhancements: Added a "This Month’s Ranking Rewards" display window. Added a "Consecutive Wins" counter to the results screen. TAIKONOTRFES-(USA)-NSwTcH-NSP-Update120-Ziperto...
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. If your file is for the older title, Version 1
Introduced four distinct leagues and a rotation of ten weekly battle songs. TAIKONOTRFES-(USA)-NSwTcH-NSP-Update120-Ziperto...
Updates in NSP format are typically installed using homebrew tools like Goldleaf or Tinfoil .