Nintendo has released update 5.5.2 for Splatoon 2, which fixes a rare but serious bug in alliance battles.This problem occurs when Nintendo Switch and Nintendo Switch 2 players join the same battle lobby, and occasionally the alliance power is not updated correctly after the game.This update ensures that league battle rankings accurately reflect game results and maintains the fairness of cross-platform competition.

Although this update is small in size, it is of great significance in maintaining the fairness and competitive balance of the rankings, especially providing protection for the player group who are still playing "Splatoon 2".As Nintendo continues to expand cross-generation compatibility support for the Switch and Switch 2 platforms, this patch brings a smoother and more stable multiplayer experience to players who are still experiencing this colorful, fast-paced shooting game.

Full update instructions

Version 5.5.2 (released October 15, 2025)

Fixed an abnormal issue where the alliance's combat power did not change after the game when the eight participants included both Nintendo Switch and Nintendo Switch 2 players in an alliance battle.

"Splatoon 2" was first released on July 21, 2017. It will stop celebrating updates in 2019 and has always been an exclusive work on the Nintendo Switch platform.