Beyblade: Metal Fusion season 1

Beyblade: Metal Fusion, known in Japan as Metal Fight Beyblade, is the first season of the 2009 Japanese anime television series Beyblade: Metal Saga based on Takafumi Adachi's manga series Beyblade: Metal Fusion, which itself is based on the Beyblade spinning top game from Takara Tomy and Hasbro. The 51-episode series was produced by d-rights and Nelvana under the direction of Kunihisa Sugishima.

The season was first broadcast on TV Tokyo in Japan between April 5, 2009 and March 28, 2010. Nelvana announced that it will air in Canada's on May 15, 2010 on YTV. The season premiered on June 26, 2010 in the United States on Cartoon Network, on September 13, 2010 in the United Kingdom, on November 10, 2010 in Australia on Network Ten, and in Latin America on April 18, 2011 on Disney XD.

Two pieces of theme music were used for the opening and closing themes. The opening theme is "Metal Fight Beyblade" (メタルファイト ベイブレード) performed by Yu+Ki and the ending theme is "Boys ~Hikari Kagayaku Ashita e~" (Boys～光り輝く明日へ～) performed by MASH. The first 23 episodes were released on six DVD compilations of three to four episodes each by Sony Pictures Entertainment. The first compilation was released on July 15, 2009 while the sixth compilation was released on December 9, 2009. The remaining 28 episodes were released on seven DVD compilations under the title Metal Fight Beyblade: Battle Bladers (メタルファイト ベイブレード バトルブレーダーズ編, Metarufaito Beiburēdo - Batoruburēdāzu-hen). The first compilation was released on January 13, 2010 while the seventh compilation was released on July 14, 2010. Beyblade: Metal Fusion was followed by a second season titled Beyblade: Metal Masters.