Pokemon Mystery Dungeon: Clashing Kingdoms is a game for the Nintendo 3DS.
As always, a human's soul is put into a pokemon's body to save the world. However, there are three kingdoms at war, each with their own groups. There are the Cielo, which are lead by Rayquaza, Shaymin and Virizion, the Fiamma, which are lead by Groudon, Landorus and Reshiram, and the Acqua, which are lead by Kyogre, Kyurem and Suicune. You can choose which kingdom to join, which will alter your journey. There, however, is a greater force pulling their strings.