Listen to the Pallet Town theme. In the standard version, the flute channel clips slightly. The Squirrels team adjusted the and echo buffer . The result is warmer bass and no static on the high notes. ROM hackers call this the “Squirrels Echo Fix.”
In the early 2000s, ROM dumping wasn't always perfect. Many versions of Fire Red floating around the internet suffered from: Causing games to crash during saves. 1636 pokemon fire red u squirrels rom extra quality