Even without patches, the 1636 version contains the classic 2004 FireRed experience:

: Often cited as one of the best fan games, it requires the 1636 Squirrels ROM to apply its complex custom engine, which includes a new region, missions, and difficulty modes.

: The "Squirrels" dump is the most reliable version of 1.0. Because most early hacking tools and major current hacks were built specifically using this version's memory map, developers require players to use it to avoid crashes or "black screen" errors during patching. 2. Common Uses: Patching Major Hacks

: Another popular (though edgy) overhaul that strictly requires the 1.0 base for its custom assets to load correctly. 3. How to Identify the Correct File