Pokemon Rumble World (ポケモンスクランブルワールド) is a Nintendo 3DS game developed by Ambrella and published by The Pokemon Company. It is the fourth entry in the Pokemon Rumble series, and the first to be released on the 3DS. The game features a variety of Pokemon from all six generations of the franchise, as well as some exclusive to the game. Players take control of a Toy Pokemon, which they can customize and upgrade, and battle other Toy Pokemon in an arena. The game also features a variety of minigames, such as fishing and digging for treasure. The game also features StreetPass functionality, which allows players to trade Toy Pokemon and battle each other. Pokemon Rumble World also supports online play, allowing players to battle each other over the internet. The game also features a variety of downloadable content, such as new levels, minigames, and even new Toy Pokemon. Pokemon Rumble World is a fun and exciting game that is sure to provide hours of entertainment for Pokemon fans of all ages.