River City Ransom

River City Ransom
North American cover art
Developer(s)
    • Technōs Japan (FC/NES)
    • SPS (X68000)
    • KID (PCE Super CD-ROM²)
    • Million (GBA)
Publisher(s)
Technōs Japan
Director(s)Mitsuhiro Yoshida
Hiroyuki Sekimoto
Composer(s)Kazuo Sawa
SeriesKunio-kun
Platform(s)Nintendo Entertainment System, X68000, PC-Engine Super CD-ROM², Game Boy Advance
Release
April 25, 1989
  • Family Computer/NES
    • JP: April 25, 1989
    • NA: January 1990
    • DE: August 1993
    X68000
    • JP: April 1990
    Super CD-ROM²
    • JP: December 24, 1993
    Game Boy Advance
    • JP: March 5, 2004
    • NA: May 26, 2004
Genre(s)Beat 'em up, action-adventure
Mode(s)Single-player, multiplayer

Downtown Nekketsu Monogatari, released as River City Ransom in North America and Street Gangs in PAL regions, is an action-adventure beat 'em up video game developed and published by Technōs Japan for the Nintendo Entertainment System. It is the third installment of the Kunio-kun series released for the NES, preceded by Renegade and Super Dodge Ball, and the first to be developed specifically for the system.

Gameplay is similar to that of Renegade, but set in a non-linear open world, a first for the series. It was the first console game published by the developer's North American subsidiary American Technos, without input from previous series publisher Taito.

Outside Japan, River City Ransom was not highly successful when initially released. However, it received positive reviews from critics for its innovative gameplay and humor, retaining a dedicated cult following to this day, while also making the Kunio-kun series prominent in the beat 'em up space. Remakes have been released for the X68000, PC-Engine Super CD-ROM², and Game Boy Advance.