The term "Squirrels" refers to the release group that originally dumped (copied) the game cartridge to a digital file.
. While it is technically version 1.0 of the US release, it is favored by developers because its memory offsets are the most documented, making it compatible with nearly all patching tools like Lunar IPS . Why You Need This Specific ROM
It is widely considered a "clean dump," meaning it contains no pre-installed cheats or buggy modifications that might interfere with custom expansions like Gen 8 mechanics or Mega Evolutions. Installation Guide