Yoshihisa Kishimoto and his team significantly evolved the beat-em-genre with Nekketsu Kouha Kunio kun/Renegade
in 1986. Technos Japan naturally wanted them to make more of these games, so they were tasked with just that. June 1987 would be the arcade birth of not only an even bigger success for Technos Japan than Kunio kun, but also the birth of another beat-em-up franchise and further evolution of the genre: Double Dragon. Originally envisioned as a direct sequel to Kunio kun, Kishimoto was given two mandates: This game should allow for 2 players simultaneously and have a bigger international appeal. Given that Kunio kun had to be visually gutted in order to sell it overseas as Renegade, a direct sequel was pretty much out of the question. So instead of taking inspiration from the Tsuppari genre and his own high school fighting experiences, Kishimoto pulled from another source that was dear to him: Bruce Lee. He particularly loved "Enter the Dragon", and so he came up with not only the title of the game but also the names of the protagonists (Billy and Jimmy Lee) from these sources.