The series also aired on Cartoon Network's Toonami programming block on Saturdays at 9-10 p.m., starting on October 1.

[6] For episodes 1-32, the opening theme is "Wild Challenger" by the Japanese rock band Jindou, and the ending themes are "Shiawase" (幸せ, Happiness) by artist Mani Laba and "Kirai Tune" (キライチューン, Hate Tune) by FREENOTE.

[12] S'more Entertainment announced on January 16, 2012 that they would release the series with English subtitles as well as dubbed versions on DVD on April 10 of the same year.

Despite a fully translated script being present on a PDF file on disc 4 and indications on the box and in the pre-release information that there would be a subtitle track.

[16] In August 2018, Discotek Media announced their licensing of the series and released an SD Blu-ray disc set of all 76 episodes on January 28, 2020.