In some versions, the subtext on the title screen can give it away, but checking the file hash is the only 100% certain way. The Verdict
patch for a ROM hack onto a v1.1 ROM, the game will almost certainly crash or show "glitch" graphics because the data isn't where the patch expects it to be. 3. v1.0 vs. v1.1: What actually changed?
In the official Fire Red , you must finish the main story, defeat the Elite Four, obtain the National Pokédex from Professor Oak, and then travel to the Sevii Islands to catch Johto and Hoenn Pokémon. Even then, many Pokémon were entirely unobtainable without trading with Ruby/Sapphire/Emerald .
Competitive players often prefer specific versions for glitches that might have been patched in later revisions (like v1.1), though v1.0 remains the most common version used for standard runs [1].