In 1987, the release of "Double Dragon" ushered in a "Golden Age" for the beat 'em up genre that lasted nearly 5 years. The game was designed as Technos Japan's spiritual successor to "Renegade", but it took the genre to new heights with its detailed set of martial arts attacks and its outstanding two-player cooperative gameplay. "Double Dragon"'s success largely resulted in a flood of beat 'em ups that came in the late 1980s, where acclaimed titles such as "Golden Axe" and "Final Fight" (both 1989) distinguished themselves from the others. "Final Fight" was Capcom's intended sequel to "Street Fighter" (provisionally titled "Street Fighter '89"), but the company ultimately gave it a new title. Acclaimed as the best game in the genre, "Final Fight" spawned two sequels and was later ported to other systems. "Golden Axe" was acclaimed for its visceral hack and slash action and cooperative mode and was influential through its selection of multiple protagonists with distinct fighting styles. It is considered one of the strongest beat 'em up titles for its fantasy elements, distinguishing it from the urban settings seen in other beat 'em ups.