If you are updating from an older version, these are the significant content additions included in the base 4.0.0 content:
The latest official update for on the Nintendo Switch is Version 4.0.0a , released on June 4, 2025. This update was primarily designed to optimize the game for play on the Nintendo Switch 2 , implementing several adjustments to improve the gameplay experience on the new system. Kirby Star Allies SWITCH NSP [Update]
: A new "difficult" mode that becomes available after clearing Story Mode, featuring harder versions of bosses. If you are updating from an older version,
: Added Magolor, Taranza, Susie, and the Three Mage-Sisters as playable characters. : Added Magolor, Taranza, Susie, and the Three
: Characters like King Dedede (Super Dedede Jump), Meta Knight (Galactic Counter), and Bandana Waddle Dee (Ground Thrust) received additional moves.
: New pictures to complete by collecting Picture Pieces.
While the version number on the software's title screen may still show as , the Options menu on the Home Menu will reflect 4.0.0a once the update is applied. Key Features from Major Updates