Pokemon Ultra Moon Update 1.2 | 99% INSTANT |

To download the update, players must access the while connected to the internet. Once installed, the version number on the title screen will change to 1.2.

Unlike some previous patches, this update was notably less disruptive to certain data. While many official sources like Bulbanews stated that Battle Videos saved prior to version 1.2 would become unplayable, community reports from platforms like Reddit suggested that version 1.1 and 1.2 shared the same video engine, potentially allowing some older videos to remain viewable. Why This Update Matters

: The update fixed an issue that occasionally prevented Pokémon received via Mystery Gift from being properly registered in the Alola Pokédex. pokemon ultra moon update 1.2

By enabling the transfer of Meltan and Melmetal, v1.2 prevented Ultra Moon from becoming an isolated island of data. It ensured that the Pokémon Bank ecosystem remained a viable hub for players who had not yet transitioned to the Switch, thereby extending the commercial lifespan of the Generation VII titles well into the Switch era.

The update improved the QR Code scanner’s recognition of code patterns, reducing crashes when registering Island Scan Pokémon. To download the update, players must access the

An Analysis of the Pokémon Ultra Moon Update v1.2: Functional Necessities and Legacy Implications

Unlike modern Nintendo Switch titles that receive extensive downloadable content (DLC), main-series Pokémon games on the 3DS relied on free patches to correct critical errors and adjust online features. Pokémon Ultra Moon and its counterpart Ultra Sun reached Version 1.2 on April 4, 2018. This update came five months after the game’s release and preceded the Pokémon Sword and Shield announcement. While many official sources like Bulbanews stated that

The update fixed a bug where rental Pokémon in the Battle Agency (a Festival Plaza facility) would retain illegal movesets or abilities from previous players’ save data. This stabilized online co-op battles.

Update v1.2 holds a unique historical position as the final "live" update for a main-series Pokémon game on the Nintendo 3DS. Its existence highlights The Pokémon Company's strategy of "forward compatibility"—supporting a legacy console even as the franchise migrated to the Nintendo Switch.

The update enforced the official Video Game Championships (VGC) 2018 rule set, automatically restricting banned Mega Stones (e.g., Kangaskhanite, Gengarite) and Z-Crystals in ranked battles. It did not, however, add new Pokémon forms or moves.

The release of Pokémon: Let's Go in November 2018 introduced these species. To allow players to bring these Pokémon backward into the 3DS ecosystem (a feature unique to Generation VII's connectivity), the 3DS software required a "key" to unlock the recognition of these specific data packets. v1.2 served as this key. This represents a rare instance in Pokémon history where a game was patched to support Pokémon species introduced in a subsequent generation's release.