To add a bit of flavor, Nintendo/Game Freak has allowed players to migrate Pokémon from the current game generation to the next one for every game generation with the sole exception of Generation 2 (Gold, Silver, Crystal) to Generation 3 (Ruby, Sapphire, Firered, LeafGreen, Emerald)<p>Players could migrate Pokémon from the virtual console re releases for Red, Blue, Yellow, Gold, Silver, and Crystal to Gen 6 and onward, but never to Gen 3, 4, or 5. Furthermore, there was never an official way to use your Gameboy Cartridge saves on the virtual console.<p>For players lucky enough to have their Pokémon save batteries still living, this is an opportunity for them to save their Gen 1 and 2 Pokémon.