The first 26 episodes of Juusen Battle Monsuno premiered in the United States as Monsuno: World Master on the Nickelodeon Channel on February 23, 2012 and was broadcast intermittently until its conclusion on November 21, 2012. Nickelodeon also broadcast the series in over 60 countries (except Japan) through its Nickelodeon Channel network. The second season (episodes 27-52), titled Monsuno: Combat Chaos, was initially announced to be released in the second half of 2013, but was later modified to April 21, 2013. TV Tokyo began airing the first 26 episodes of the series in Japan on October 3, 2012, continuing until March 27, 2013. With no breaks in the airing schedule, episode 27 was then broadcast on April 3, 2013 and the series continued without a change in title.