Fist of the North Star (NES video game)
The U.S. version was shown at the 1988 Summer Consumer Electronic Show under the title "Ken the Great Bear Fist", which is the localized title used by Toei's international sales department. The title was changed to "Fist of the North Star" for its release in order to tie in with Viz's English adaptation of the manga. The cover artwork for the U.S. version depicts Kenshiro sparring with Toki, who doesn't appear in the game and never actually appeared in the "Hokuto no Ken 2" anime series outside flashbacks (as the character was already deceased by that point of the storyline). The NES version has some slight differences from its Famicom counterpart, which cuts the appearances of side characters at the end of certain stages (such as Bat and Rin at the end of the first stage), as well as the kanji that appear at the top of the screen when Kenshiro defeats a boss after striking its weak point at the start of the battle.
Crest of the Stars
"Crest of the Stars" was released in Japan in 1999 and in the United States by Bandai in 2001. At the end of 2002, TechTV announced that "Crest of the Stars" was to be one of the initial titles as part of their new "Anime Unleashed" programming and began broadcast at the end of 2002 and through 2003. Following the closure of Bandai Entertainment in 2012, Sunrise announced at Otakon 2013, that Funimation had licensed "Crest of the Stars", "Banner of the Stars" (Seasons 1 & 2) and "Passage of the Stars".
Several episodes contain a brief introduction about the history, culture, purpose and perception of the Abh and its empire. 
Roughly a year after the Anime finished airing, at the end of May 2000 Bandai Visual released a video game adaptation for the PlayStation. It features a story inspired by both the Crest of the Stars and the Banner of the Stars novels, incorporating some of their characters. The game consists of 67 different space battles, with a story split in two paths and three possible endings each.