[img48i]http://www.serebii.net/corocoro6142.jpg[/img48i]
"The next batch of CoroCoro information has been posted to Japanese forums and this batch showcases more information about a new game called The Band of Theives & 1000 Pokémon, This game is to be available on the 3DS eShop in Japan from June 5th and uses StreetPass to collect Pokémon to battle thieves. These thieves are based upon the characters Raiotto and Maririn from the upcoming movie, Diancie & The Cocoon of Destruction. It's available for a limited time only and is free. It also offers a special Pikachu for download.
Winners of the battles against the theives are decided on numbers of Pokemon you have"
source [url48i]http://www.serebii.net/[/url48i]