D.Gray-man: Requirements of a Instrumentalist

is a game for the PlayStation 2 based on the manga series by Katsura Hoshino. It was released by Konami on September 11, 2008.

Short Outline
Players, controlling such Exorcist characters as Allen Walker, Yu Kanda and Lenalee Lee, follow the D.Gray-man storyline, interacting with other characters, be they ally or enemy, based on the manga plot. The battle system is turn-based, and characters fight on a map divided by a grid system, with certain actions only executable in certain ranges.