Pokémon Box: Ruby & Sapphire

Screenshots:

Fanart:

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Background:
In Pokemon Box, you can store up to 1500 pokemon, view your Pokemon's stats, and view your Pokemon pieces. This is more of an "expansion" disc for the new Ruby/Sapphire versions of the game, rather than a whole new game itself. You can transfer monsters from any of the Pokemon games on Gameboy including Pokemon Blue, Pokemon Red, Green, Crystal, Ruby, etc. A GBA link cable is required.