The last of the leaks from this month's edition of CoroCoro have come in and revealed a special Pokémon themed StreetPass game coming to 3DS owners in Japan. The game, going by the name of The Band of Thieves & 1000 Pokémon, will be released for free through the 3DS' eShop on the 4th of June for a limited time.
The aim of this StreetPass game is to collect as many Pokémon as you can through StreetPass, who can then help you battle the thieves. The result of battles will be dependant on how many Pokémon you've collected.
The game is being released to tie in with the release of the 17th Pokémon movie in Japan and will feature a couple of main characters from the film. CoroCoro states that the game will offer a special downloadable Pikachu, but no more details about the Pokémon are known.