Achieving this feat in Pokémon White 2 is unique compared to other eras. Generation V was the last generation before the transition to 3D mechanics on the Nintendo 3DS. Because of this, a save file with all 649 Pokémon serves as a historical snapshot of the franchise's 2D era.
To the uninitiated, this might sound like the point of the game. But to anyone who has ever stood in the tall grass of Unova, resetting a DS clock for a swarm encounter at 3:47 AM, they know: completing the National Pokédex in Black 2 and White 2 isn’t a checklist. It’s a war crime against your own free time. pokemon white 2 save file all 649 pokemon