version 1.0 for the GameBoy Advance. It has become the gold standard in the Pokémon ROM hacking community because it is a "clean" dump, meaning its internal code is unmodified and serves as a stable base for major fan-made games. Why "Squirrels" is Important Most modern ROM hacks require version
★★★☆☆ (or adjust as needed)
The filename alone raises eyebrows. The “1636” suggests a numbered set (likely a user’s personal backup index). “Pokémon Fire Red - U” indicates the USA release. But the double hyphen and the word “Squirrels”? That’s where reality begins to crack. 1636 Pokemon Fire Red - U-- Squirrels
Another user, , claims: “There’s a hidden ending. If you complete the Pokédex (all 151 squirrels), Professor Oak gives a speech about the ‘true nut’ being friendship. Then the game deletes itself.” version 1
It is specifically Version 1.0 of the US release. The “1636” suggests a numbered set (likely a
of the original game to function. While a later version (1.1) was released to fix minor bugs, the memory addresses in version 1.1 are different, making most fan patches incompatible with it. The "Squirrels" dump is the most widely recognized version of this 1.0 code. Popular Hacks That Require This ROM