Collectibles and completion
Optional discoveries, useful collections and completion goals in Pokémon FireRed / LeafGreen.
Story and late-game spoilers.
Game Boy Advance remakes; not the original Red/Blue or Let’s Go games.
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Kanto Pokédex
Separate route catches, fishing, Safari Zone encounters and evolutions. Version exclusives and trade evolutions require more than exploring one save file.
Sevii Island discoveries
Return to the islands as the postgame opens. Track story requirements before hunting later encounters; arriving at a location does not mean every encounter is available yet.
Finite resources
Keep a list of rare TMs, evolution stones and major held items. Save before unique encounters and prepare appropriate balls and status moves rather than relying on repeated damage.
The National Pokédex changes the scope
The original Kanto collection and later National Pokédex stage have different availability. Later island progress also needs its own story conditions, so a postgame species list cannot be treated as an early-route encounter table. Keep caught count, evolution and trade entries distinct. A Pokémon seen in a trainer battle can be useful information while still leaving the ownership requirement unresolved for a collection goal.
Prepare for one-off choices and encounters
Some rewards ask you to choose between alternatives, while important wild encounters do not behave like a repeatable grass search. Keep a separate save before a choice or unique encounter when possible, and write down what the save actually obtained. Rare TMs and evolution resources also deserve a planned recipient. This avoids confusing an unmade decision, a failed catch and an unavailable version exclusive as the same kind of missing entry.