Battletoads & Double Dragon: The Ultimate Team is a 1993 beat 'em up developed by Rare and published by Tradewest. It was originally released for the NES and later ported to the Sega Mega Drive/Genesis, Super NES, and Game Boy. The Ultimate Team is a crossover of both Technos Japan's Double Dragon and Rare's own Battletoads game franchises, although Technos had little or no credited involvement in the production of the game outside of the Double Dragon license. The game features the characters from the Double Dragon series, Billy and Jimmy Lee, two young martial arts experts; also included are the three humanoid toad protagonists from the Battletoads game. It is also the first Battletoads game to feature all three toads as playable characters. The game's engine and design are directly based upon the Battletoads series.

The Datach (データック, Dētakku) or Datach Joint ROM System, was an add-on accessory by Bandai for the Family Computer and was released on December 29, 1992. It was packaged with one game, Dragon Ball Z: Gekitō Tenkaichi Budokai. Six other games that were released for it, including one of the last games for the Famicom system in 1994. It is one of two mini systems compatible with the NES/Famicom, the other being the Aladdin Deck Enhancer. The Datach consists of a cartridge connection at its bottom, a central cartridge chamber on its back, with two spring-loaded pins on either side, which are pushed up when the unit is inserted into the Famicom, allowing the game to only be removed when the Datach has been removed from the Famicom. Its main feature is the card reading slot on the front. The cartridges resemble half-size Famicom cartridges. One side of the cartridge is flat with title sticker, while the other side is sloped inward with notches on the left and right, which correspond to the spring pins on the main Datach unit. The cards that come with the games are swiped from left to right along the card slot; they are glossy on the front with an image of the character and the backs are smooth usually having the title of the game and barcode. All cartridges, boxes, instructions have the standard FF (Famicom Family) insignia, showing they are officially licensed by Nintendo.

Double Dragon (ダブルドラゴン, Daburu Doragon?) is a 1987 beat 'em up developed by Technōs Japan and distributed in North America and Europe by Taito Corporation. The game is a spiritual and technological successor to Technos' earlier beat 'em up, Nekketsu Kōha Kunio-kun (released outside of Japan by Taito as Renegade), but introduced several additions such as two-player cooperative gameplay and the ability to arm oneself with an enemy's weapon after disarming them. Double Dragon is considered to be one of the first successful examples of the genre, resulting in the creation of two arcade sequels and several spinoffs, as well as inspiring other companies in creating their own beat 'em ups. Home versions of the game were released for the Nintendo Entertainment System, Sega Master System, Atari 2600, Atari 7800, Atari ST, Amiga, Amstrad CPC, Commodore 64, Game Boy, Genesis/Mega Drive and Atari Lynx, among other platforms during the series's height of popularity. A remake titled Double Dragon Advance was released for the Game Boy Advance in 2003. The NES version was re-released for the Wii's Virtual Console in North America on April 28, 2008 at a cost of 500 Wii Points. Nintendo also released the Game Boy version on the Nintendo 3DS Virtual Console in 2011. Another remake was released for the iOS mobile devices in 2011, which features brand new gameplay, sprites and animations, and music. A new Double Dragon title, Double Dragon Neon, was released in 2012 for Xbox Live Arcade and PlayStation Network, and in 2014 for Steam and is considered a reboot of the series.

Double Dragon II: The Revenge (ダブルドラゴンII ザ・リベンジ Daburu Doragon II: Za Ribenji?) is a side-scrolling beat 'em up produced by Technōs Japan originally released as a coin-operated arcade game in 1988. It is the sequel to Double Dragon, released during the previous year. A home version for the Nintendo Entertainment System was released in 1989 which differs drastically from the original arcade game. Other home versions were also released for the Sega Mega Drive/Genesis and PC Engine.

Dragon Ball (ドラゴンボール, Doragon Bōru) is a Japanese manga series written and illustrated by Akira Toriyama. It was originally serialized in Weekly Shōnen Jump from 1984 to 1995, with the 519 individual chapters published into 42 tankōbon volumes by Shueisha. Dragon Ball was initially inspired by the classical Chinese novel Journey to the West. The series follows the adventures of the protagonist, Goku, from his childhood through adulthood as he trains in martial arts and explores the world in search of the seven orbs known as the Dragon Balls, which summon a wish-granting dragon when gathered. Along his journey, Goku makes several friends and battles a wide variety of villains, many of whom also seek the Dragon Balls. The 42 tankōbon have been adapted into two anime series produced by Toei Animation: Dragon Ball and Dragon Ball Z, which together were broadcast in Japan from 1986 to 1996. Additionally, Toei has developed eighteen animated feature films and three television specials, as well as an anime sequel titled Dragon Ball GT, which takes place after the events of the manga. From 2009 to 2011, Toei broadcast a revised, faster-paced version of Dragon Ball Z under the title Dragon Ball Kai, in which most of the original version's footage not featured in the manga was removed. Several companies have developed various types of merchandising based on the series leading to a large media franchise that includes films, both animated and live-action, collectible trading card games, numerous action figures, along with several collections of soundtracks and a large number of video games. The manga series was licensed for an English-language release in North America by Viz Media, in the United Kingdom by Gollancz Manga, and Australia and New Zealand by Madman Entertainment. The entire anime series was licensed by Funimation Entertainment for an English-language release in the United States, although the series has not always been dubbed by the same studio. There have been many films of the franchise including the first live-action film adaptation being produced in 1989 in Taiwan. In 2002, 20th Century Fox acquired the rights to produce an American-made live-action film titled Dragonball Evolution that received a negative reception from critics and fans; the movie was released on April 10, 2009 in the United States. Since its release, Dragon Ball has become one of the most successful manga and anime series of all time. The manga's 42 volumes have sold over 156 million copies in Japan and more than 230 million copies worldwide, making it the second best-selling manga series in history. Reviewers have praised the art, characterization, and humor of the story. It is widely regarded as one of the greatest manga series ever made, with many manga artists such as Eiichiro Oda (One Piece), Masashi Kishimoto (Naruto), Tite Kubo (Bleach), Hiro Mashima (Rave Master, Fairy Tail) and Kentaro Yabuki (Black Cat) citing Dragon Ball as a source of inspiration for their own now popular works. The anime, particularly Dragon Ball Z, is also highly popular in various countries and was arguably one of the most influential in boosting the popularity of Japanese animation in Western culture.