Some users prefer to "patch" their files by combining the base NSP and the update into a single file using tools like Swiss Army Knife (SAC) to simplify the installation process.
The current latest update for on Nintendo Switch is Version 4.0.0a , which was released on June 4, 2025 . This update ensures the game's compatibility with both the original Nintendo Switch and the Nintendo Switch 2, while including all previous content from the major "Waves" of free DLC. Latest Patch Overview: Version 4.0.0 & 4.0.0a kirby star allies switch nsp update patched
While Version 4.0.0a primarily focuses on system compatibility and "pleasant gaming experience" fixes, it carries over the massive content from Version 4.0.0, which was the final major content drop. Some users prefer to "patch" their files by
In the context of the Nintendo Switch, an is the digital file format used for games, updates, and DLC. Latest Patch Overview: Version 4
To apply an update to an NSP base game, users often use homebrew tools like Goldleaf or AWO to install the update file directly to the SD card.
Various gameplay enhancements, including fixing the "boss health bar disappear" glitch and adjusting boss defense scaling. Technical Details: NSP Files and Updates