Hunter × Hunter: Phantom Rouge
"Hunter × Hunter" creator Yoshihiro Togashi wrote the two-part manga to act as a prequel to the film. A collected version of the story, referred to as "Volume 0" of the series, was given to the first million moviegoers. A light novel adaptation of the film was released by Shueisha on January 15, 2013.
Casshan: Robot Hunter
Casshan: Robot Hunter, known in Japan as or simply , is an original video animation (OVA) series that was directed by Hiroyuki Fukushima, produced by Tatsunoko and Gainax, and animated by Artmic. The OVA was later adapted into an English-language dubbed film that was directed by Carl Macek. This series is based on Tatsunoko Productions' 1973 anime series "Neo-Human Casshern".