Call of Duty: Black Ops ( コールオブデューティブラックオプス, Kōru obu Dyūti Burakkuopusu) is a first-person shooter video game developed by Treyarch and published by Activision for the Nintendo DS. It is the seventh installment in the Call of Duty series and the first to be released for the Nintendo DS. The game follows the story of an elite special forces unit on a mission to find and eliminate a dangerous terrorist organization. The game features a single-player campaign, as well as a variety of multiplayer modes including Deathmatch, Team Deathmatch, Capture the Flag, and Sabotage. The game also includes a unique co-op mode called Campaign Co-op, where up to four players can join together to complete the single-player campaign. The game also features a variety of weapons, including rifles, SMGs, shotguns, and machine guns, as well as a selection of grenades and special equipment. The graphics in Call of Duty: Black Ops are impressive for a Nintendo DS game, with detailed textures and realistic characters. The sound is also very good, with realistic sound effects and an intense musical score. The controls are well-designed, making the game easy to pick up and play. Overall, Call of Duty: Black Ops is an impressive shooter for the Nintendo DS. It features excellent graphics, sound, and controls, as well as a variety of interesting weapons and modes. It is a great game for fans of the Call of Duty series and those looking for a fun and challenging shooter experience.