Pokémon Box: Ruby and Sapphire is essentially a storage system for the Game Boy Advance Pokémon games that allows players to trade and store Pokémon that they have caught in Ruby, Sapphire, Emerald, FireRed, and LeafGreen onto a GameCube memory card. Players can then organize and interact with their Pokémon on the GameCube, such as allowing them to breed. (wikipedia.org)