: Fixes issues causing disconnects during Random Matchups and online competitions.
In the context of Pokémon Y Update 15, EUR and USA refer to the regions where the update is applicable. EUR stands for Europe, while USA refers to the United States. This indicates that the update is intended for players in these regions, and may not be compatible with game versions from other regions. pokemon y update 15 decrypted 3ds eur usa better
There is no performance difference. The "better" version is simply the one that matches the region of your save file. If you have a USA save file, you must use the USA v1.5 update. Attempting to apply the EUR update to a USA game will result in a version mismatch error. : Fixes issues causing disconnects during Random Matchups