Beyblade: Metal Masters, known as Metal Fight Beyblade: Choujou Kessen! Big Bang Bladers (メタルファイト ベイブレード 頂上決戦!ビッグバン・ブレーダーズ, Metaru Faito Beiburēdo Chōjō Kessen! Biggu Ban Burēdāzu) in Japan and Metal Beyblade 2: Big Bang Bladers (메탈 베이블레이드2 빅뱅 블레이더즈) in South Korea, is the fourth installment in the Beyblade: Metal saga video game series for the Nintendo DS. This video game adapts the characters and Beyblades from the TV series, Beyblade: Metal Masters. It was released on December 2, 2010 in Japan and was later released on April 21st 2011 in South Korea and came with the exclusive Nightmare Rex SW145SD. It was also released on November 15, 2011 in United States, and came in five different versions; four of them included with a different Beyblade. The Beyblades were Nightmare Rex SW145SD, Bakushin Susanow 90WF, Vulcan Horuseus 145D, and Ultimate Gravity Destroyer GB145S Stamina Ver.
The game takes place after the "Beyblade World Championship" tournament that occurred in the anime and follows a new tournament of the same name where each Blader in the game receives a letter from a mysterious person named Agito to enter, in order to determine the best Blader at a place called "Dyna Cemetery". Players select a Blader to battle as and fight in four rounds with two matches each to win the tournament.