Early updates for the trilogy (following its original console debut) focused on graphical updates, bug fixes for stuck zombies, and the ability to toggle UI elements like the in-game scoreboard.
Unlike many Switch ports where updates only fix minor text issues, Zombie Army Trilogy v1.2.0 fundamentally improves the aiming sensitivity and reduces the resolution scaling that blurred enemies at a distance. The base game is playable, but the update turns it from a "passable" port into a genuinely solid handheld experience.
As of the second half of 2025, the latest official patch for Zombie Army Trilogy on Nintendo Switch is (sometimes labeled internally as v131072).
The Switch version introduced motion control aiming, HD Rumble, and Pro Controller support, making the signature "X-ray Kill Cameras" even more immersive.