The term "nspupdate 104rar" strongly suggests you are looking for a pirated or unauthorized distribution of the game's patch.

The most lauded fix in 1.0.4 is a reduction in input lag. Dodonpachi Resurrection requires frame-perfect dodging. Previous versions had a minor but noticeable delay between button press and shot/laser activation. Version 1.0.4 optimizes the Switch’s USB and wireless polling, bringing the game closer to the arcade’s 1-frame response.

Early versions suffered from desynchronization issues in replay mode—your perfect 2 billion point run would show you crashing into a bullet you never actually hit. Update 1.0.4 completely rewrites the input recording logic. Replays now reliably sync across Switch hardware revisions (Mariko, Erista, OLED).

The patch notes for Update 1.0.4 (released in late 2022) were significant for the preservation of the game. Here is a review of what this specific update accomplished:

Verdict on the Update: This is a necessary and positive update. It protects the competitive nature of the game. If you are playing offline or casually, the restrictions on save states might feel limiting, but for the health of the game's community, it was the right move by the developers.

  • Firmware Mismatch:
  • Install Failures:
  • The 104rar archive allegedly includes a pre-patched NSP that unlocks all regional DLC (Japanese, US, European). This includes:

    First, it is important to distinguish the game itself. DoDonPachi Resurrection is widely considered one of the greatest "bullet hell" shmups ever made. Developed by CAVE, it features tight controls, incredible visual design, and a complex scoring system.