Pokemon Brilliant Diamond and Shining Pearl is coming to Nintendo Switch in November, but fans that plan on pre-ordering the game might still be on the fence about where to get it. A number of retailers have already revealed pre-order bonuses, and Best Buy now joins them. Fans that pre-order the Brilliant Diamond and Shining Pearl Double Pack will receive a keychain featuring charms of Turtwig, Piplup, and Chimchar, the game's starters. Unfortunately, it seems that the keychain is only available with purchase of the Double Pack, and not with either of the individual releases.