
The storyline ( but not the gameplay) of River City Ransom was continued in the ( also Japan only) game Downtown Nekketsu Kōshinkyoku: Soreyuke Dai Undōkai. It is less linear, has a proper save system in place of the original's long passwords, allows computer controlled allies in a 1 player game and has a great deal more moves, but replaces the classic "eat food for power" with equipping items and a level up system, restricting food to health regeneration.

Has a Japan only sequel/spin-off Downtown Special: Kunio-kun no Jidaigeki Dayo Zen'in Shūgō!, which is practically River City Ransom recycled in historical Japan. It offered several different ways to customize your character, was one of the earliest games to blend RPG elements into another genre in a successful fashion, and was noted for its humor in many spots.

While not the most well-known game on the Nintendo Entertainment System, it was well-received by those who did play it. So Alex and Ryan fight their way past gang territories and various malls to get to River City High, take down Slick, and rescue Ryan's girlfriend.

The story goes that Ryan's (Riki's) girlfriend gets kidnapped by River City High's top gang leader, Slick (Yamada), who also happens to be the arch-rival of Cross Town High's top punk, Alex (Kunio). River City Ransom, released in Japan as Downtown Nekketsu Monogatari (part of the Kunio-kun series, which also included the Super Dodge Ball series, Crash 'n the Boys: Street Challenge, and the original Renegade) and in Europe as Street Gangs, is a Beat 'em Up with elements of a Role-Playing Game.
