Random Matchup can be accessed through the [[Global Terminal]] inside the Pokémon Centers ([[Player Search System]] in [[Generation VI]]). Players are given the option to choose the battle mode between Single Battle, Double Battle, Triple Battle, Rotation Battle, or Launcher Battle. The option for Free mode and Rating mode is then given, the latter of which is the concern of the Global Battle Union. Rating mode requires players to have Black
and White game synched with a corresponding Global Link account. Players start out with a 1500 Rating that increases or decreases depending on the outcome of the battle. Players are more likely to battle other players of the same rating.