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.

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.

Originally released for Japanese arcades in 1991, Double Dragon III: The Sacred Stones is the third game in the Double Dragon franchise. Developed by East Technology and published by Technos Japan Corp., Double Dragon III: The Sacred Stones has since been released on a wide variety of platforms, with numerous differences between ports. Typically regarded as one of the worst games in the franchise, Double Dragon III: The Sacred Stones is often criticized for its shop system, unnecessarily difficult bosses, and lowered graphical quality. Despite this, the NES version received mostly positive reviews, due to the more direct attention from Technōs Japan Corp.