Completing a Pokédex generally means registering every species required by that game’s regional or national Pokédex. The requirement may include catching, seeing, evolving, trading, transferring, or completing research tasks, depending on the title. Version-exclusive Pokémon and trade evolutions often require interaction with other players or special in-game alternatives. Start by checking the in-game Pokédex categories and make a list of missing entries. Capture common species early, evolve duplicates when needed, and save rare encounters. Do not assume every Pokémon from every generation is obtainable in one game; each title has its own supported roster.
