When can you use passwords on super Pokemon Rumble 3ds?

In Super Pokémon Rumble for the Nintendo 3DS, passWords can be used to unlock special Pokémon or items. You can enter these passWords at the main menu by selecting the "PassWord" option. Once entered correctly, the rewards will be delivered to your game. Be sure to check for valid passWords through official sources or community guides, as they can change or expire.