Since the game is , playing a raw NSP might be tough if you don't speak the language. However, the community has been incredible—there is a high-quality English Translation Fan Patch available.
A unique, hard-mode dungeon added in the 2.1 “Up” patch. It requires specific DLC keys dropped in the Busters T mode.
If you see “DLC Up” in release forums, it usually means the NSP comes pre-patched to the highest version (often 2.2 or 2.3) and includes all free DLC tickets (like the ones for and Darknyan ).
If you are installing this, make sure your and System Firmware are up to date. Newer NSPs often require the latest "SigPatches" to run correctly without errors.