The premium Pokkén Tournament DX Battle Pack adds significant variety to combat through two distinct waves of content: Wave 1: Aegislash & New Supports

Translating to "update" (更新), these files apply critical software patches. These patches correct software bugs, adjust character balance, and are strictly required if you want to use the console's local wireless or internet matchmaking features.

The .NSP file format is the official package type used for digital software on the Nintendo Switch. Players who manage their libraries digitally use these files to store games, patch updates, and install downloadable content.

If you need help troubleshooting a specific How to Update Pokkén Tournament DX - Nintendo Support

Press the on the controller to open the Options menu.

The expansion data unlocks characters that were not included in the original release. The DLC Expansion: Battle Pack Breakdown