The River City Ransom reference article from the English Wikipedia on 24-Apr-2004
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River City Ransom

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River City Ransom (Downtown Nekketsu Monogatari in Japan and Street Gangs in Europe) is a video game for the Famicom and the Nintendo Entertainment System from the now defunct Technos Japan Corporation, released in 1989.

It is from Technos's Nekketsu Kouha: Kunio-Kun series. It has received an enhanced remake for Gameboy Advance by Atlus. The storyline was altered from the Japanese version.