"Battle Royale" was translated into English by Yuji Oniki and released in North America by Viz Media on February 26, 2003. An expanded edition with a revision of Oniki's translation and an afterword by Takami was published on November 17, 2009 by Haikasoru, a division of Viz Media. This version also included an interview with the director of the book's film adaptation, Kinji Fukasaku. Viz released a new translation by Nathan Collins on April 1, 2014, under the title "Battle Royale: Remastered". They also published "The Battle Royale Slam Book: Essays on the Cult Classic by Koushun Takami" on the same day, which includes essays on the details of the novel and the controversies surrounding it as well as its adaptations written by science-fiction, horror, and thriller authors such as Brian Keene, John Skipp, and Catherynne M. Valente.