「鋼の錬金術師ダブルシンパシー」 (Fullmetal Alchemist: Dual Sympathy) is a Japanese action-adventure video game for the Nintendo DS platform. Developed by Racjin and published by Square Enix, it was released in Japan on October 27, 2005, and in Europe on November 24, 2006. The game is based on the popular manga and anime series Fullmetal Alchemist, and follows the story of two brothers, Edward and Alphonse Elric, as they search for the legendary Philosopher's Stone. Players take control of the two brothers, switching between them at will in order to solve puzzles and defeat enemies. The game features an open world environment and is divided into two modes: Adventure Mode and Battle Mode. In Adventure Mode, the players travel across the world of Fullmetal Alchemist, completing story-based and optional missions to progress the story. The game also features a variety of mini-games, such as fishing, alchemy, and racing. Players can also collect items and upgrade their characters by synthesizing items at alchemy stations. In Battle Mode, players can battle against each other locally or online. The game also features a variety of collectible cards which can be used to customize characters and change their abilities. Fullmetal Alchemist: Dual Sympathy is an action-adventure game that captures the essence of the popular manga and anime series. With its open world environment, fun mini-games, and customizable character abilities, it is sure to provide hours of entertainment.