ドラゴンクエストモンスターズジョーカー3 プロフェッショナル (ドラゴンクエストモンスターズジョーカースリープロフェッショナル) is a role-playing game developed by Square Enix and released exclusively in Japan for the Nintendo 3DS. It is the sixth installment in the Dragon Quest Monsters series, and the third in the Joker sub-series. The game follows the same basic premise as its predecessors, and sees the player taking on the role of a Monster Scout, who is able to capture, train and battle monsters. The game features a new world map and a variety of new monsters to capture and train. The player must explore the world and battle other monster scouts in order to become the world's greatest Monster Scout. The game also features a new battle system, which allows the player to customize their team of monsters and use various strategies to defeat their opponents. Dragon Quest Monsters - Joker 3 Professional also features a variety of new features, such as the ability to fuse monsters together to create powerful new monsters, as well as the ability to transfer monsters from previous Dragon Quest Monsters titles. The game also features a variety of mini-games, which can be played in order to earn rewards. Overall, Dragon Quest Monsters - Joker 3 Professional is an exciting and enjoyable game that fans of the series will enjoy. It features a variety of new features, and its engaging battle system will keep players coming back for more.