English patch is one of technical hurdles and a "lost" localization that forced the community to take matters into its own hands. While the original Joker 2 was officially localized for the West in 2011, the expanded Professional version—featuring over 100 additional monsters and a new post-game scenario—remained a Japan-exclusive release. The Localization Gap

Despite the language barrier, many fans prefer this version because it serves as a massive expansion of the base game:

Dragon Quest Monsters: Joker 2 Professional is the sequel to Dragon Quest Monsters: Joker, which was released in 2006. The game follows the story of a young protagonist who lives in a world where monsters are an integral part of everyday life. Players take on the role of a monster tamer, tasked with exploring the world, capturing and collecting monsters, and battling against other tamers.

New fusion paths and the "Monster Master" rank system.

For those looking to play this version over the standard localized release, it features: Expanded Roster : Over 100 additional monsters, many from later Dragon Quest New Scenario : A post-game story arc set on a floating island. Rank Adjustments

Unlike other entries in the series, a 100% complete story translation for the Professional version does not currently exist. Translated Content : The available patches primarily focus on menus, items, monster names, and skill names Untranslated Content