Daiku no Gen-san 2: Akage no Dan no Gyakushuu is the second Hammerin' Harry game released for the Famicom. The graphics and game play are very similar to the original Hammerin' Harry for the NES\Famicom. In this game Harry's nemesis is a guy named Dan. Harry will need to fight his way through construction sites, an underwater fortress, and a jungle to defeat Dan. The game was released exclusively for the Famicom in Japan.