MadWorld (Japanese: マッドワールド, Hepburn: MaddoWārudo) is a beat 'em up video game developed by PlatinumGames (in their debut title) and published by Sega. It was released for the Wii on March 10, 2009, in North America, March 20 in Europe, March 26 in Australia, and February 10, 2010, in Japan. It was re-released in Australia on March 11, 2010, in Sega Australia's Welcome to Violence boxset, which also includes The House of the Dead: Overkill and The Conduit.