The inner file is an NSP , which stores the game ROM, icons, and metadata.
This specific file is labeled as the "Base Game," meaning it is likely version 1.0.0 and does not include subsequent software updates (like the Boss Rush or Rookie Mode added in version 2.1.0). Usage and Compatibility Metroid Dread (NSP)(Base Game) (2).rar
While the official game is approximately 4.1 GB to 4.3 GB , the .rar format is used to reduce this size for easier sharing or storage. The inner file is an NSP , which