Bio-Hazard Battle, released in Japan as Crying: Aseimei Sensou (クライング 亜生命戦争?), is a 1992 side-scrolling shoot 'em up released for the Sega Mega Drive/Genesis and for the Sega Mega Play arcade platform. On February 26, 2007, it was also made available on the Wii's Virtual Console. As of October 26, 2010, the game is available on Steam as well.