Grave carries two twin guns, called Cerberos (named after the three-headed hound of Hades). He also carries a coffin strapped to his back that doubles as assorted special weapons, including a machine gun and a rocket launcher.
The game itself was given moderate ratings due mostly to its short gameplay and minimal replay value. However, the very anime-like stylings from creators Yasuhiro Nightow (of Trigun fame) and Kousuke Fujishima (of Oh My Goddess and You're Under Arrest fame) gave the game a very distinct and unique look and feel that impressed many people.
In 2003, it was announced that an anime television series would be created based on Gungrave. This anime is set to begin broadcast on October 6 on TV Tokyo and will involve many of the same characters (and seiyuu) found in the game.