Although originally broadcast by TV Tokyo in Japan, follow-up seasons ( and ), premiered in Canada and the US before Japan. The fourth and final season, "Mechtanium Surge", was never broadcast in Japan and instead aired in North American markets. However, a Japan-exclusive manga series, "Baku Tech! Bakugan", ran from August 15, 2010 to January 15, 2014. This received an anime adaption aired on TV Tokyo from April 7, 2012 to March 30, 2013, followed by a second season called "Baku Tech! Bakugan Gachi" which ran from April 6, 2013 to December 28, 2013.