CheatCodes.com has all the official River City Ransom EX GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday June 19, 2013 for River City Ransom EX are shown below.
To face a boss, you must first defeat all gang members from each turf at least once before entering a Boss' turf. Also, you must defeat the bosses in the order below to enter Reihou High School.
Sawaguchi: Hanazo Second District (just before the second shopping arcade), and again at Marukaunsou Haisoko Higashiguchi (back gate of the warehouse after defeating Nishimura). Kamijou and Yamamoto: Below Shintakaragawa (below the bridge after the 2nd town) & again at the sauna (after defeating Nishimura, Mochizuki, and Taira). Nishimura: Marukaunsou Haisouko (inside the warehouse) Mochizuki: Marukaunsou Haibiru Shoumenguchi (outside the tunnel) Taira: Midorimachi Third District (just before the third shopping arcade) Kinoshita: Hanazo Park (after defeating Taira) Kobayashi: Kobayashi Sangyo Kojou (inside the factory, after defeating Kinoshita) Kunio or Riki (only when playing a solo game): Kobayashi Sangyo Kojou Uradeguchi (back of the factory, just before the last shopping arcade) Himada: Yumemichou Second District (after the sauna) Gouda: Outside Reihou High School Onizuka: Reihou School Gym Gotai: Reihou Classroom Third Floor Ryouichi and Ryouji (Billy and Jimmy Lee: The Double Dragon Twins): Reihou Classroom Top Floor Yamada: Reihou Classroom Rooftop
Repeatedly run into a wall to increase your reputation by one point each time.
Successfully complete the game to unlock the Kasutamu Kaozura item for purchase for ¥9,000. It will allow your character's appearance to be customized.
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