River City Ransom, originally known as Downtown Nekketsu Monogatari, was released by Technōs Japan for the Nintendo Entertainment System (Famicom in Japan).
River City Ransom was released in North America for the Nintendo Entertainment System, gaining a cult following.
A remake titled River City Ransom: Underground was announced to revitalize the classic game with updated graphics and new features for modern platforms.
Tokio kidnaps the girlfriend of one of the protagonists, sparking the quest to save her.
The protagonists start their fight through the streets of River City to rescue the kidnapped girlfriend and take down the gangs controlling the city.
The heroes confront and defeat various gang leaders who control different parts of River City, weakening their hold on the city.
After defeating all the gang leaders, the protagonists successfully rescue the kidnapped girlfriend from Tokio's clutches.
The protagonists face off against Tokio in a final battle to restore peace to River City.