Localization
Renegade is a localization of the Japanese Nekketsu Kōha Kunio-kun for the North American and Worldwide markets, with the game's graphics changed in an attempt to adapt the game's setting to a more western style (with what can be seen as thinly veiled 'inspiration' from the film The Warriors). The gangs of thugs and bikers featured in Renegade were originally high school delinquents, bōsōzoku members, a sukeban along with her minions, and finally Yakuza members in Kunio-kun. The subway level in the first stage was originally a Japanese train station, whereas most of the signs and billboards in the last two stages were also written in Japanese. The title of the Japanese version was influenced by Konami's arcade game, Shinnyuushain Tooru-Kun (known outside of Japan as Mikie).
Instead of the damsel-in-distress plot of Renegade, Kunio-kun instead featured the titular high school student, Kunio (くにお?), standing up for his bullied friend Hiroshi. Each stage begins with the stage's gang beating up Hiroshi in front of Nekketsu High School and Kunio chasing after his attackers. Unlike Renegade, Kunio and the game's bosses are identified by name in-game, whereas the characters in Renegade are simply identified by the generic identifier "1P" or "2P" (depending on who is playing) and "BOSS" (it wasn't until the NES version that bosses in Renegade were given names). The bosses of Kunio-kun are as followed: Riki (りき?), Shinji (しんじ?), Misuzu (みすず?) and Sabu (さぶ?). The game ends with Hiroshi and several students of Nekketsu High School greeting Kunio outside Sabu's hideout, with Hiroshi giving Kunio a firm handshake. The game begins a new cycle, this time skipping the pre-stage introductions. Like Renegade, each character has a catch-phrase said by them in digitized voice, but spoken in Japanese.
The Family Computer version of Kunio-kun was Technos Japan's first game for a home console. After Nekketsu Kōha Kunio-kun, Technos Japan reuse the Kunio character for several more games, beginning with Nekketsu Kōkō Dodgeball Bu (the Japanese version of Super Dodge Ball) released for the arcades and the Famicom/NES. Some were released overseas such as River City Ransom (the American version of Downtown Nekketsu Monogatari), Nintendo World Cup (Nekketsu Kōkō Dodgeball Bu: Soccer Hen) and Crash 'n the Boys: Street Challenge (Bikkuri Nekketsu Shin Kiroku!), but most of them were released only in Japan. Kunio eventually became Technos Japan's official mascot, appearing on the company's logos in the intros of some of their later games, as well as in their Japanese television advertisements.
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