DJ Hero is a music video game developed by FreeStyleGames and published by Activision as a rhythm game similar to Guitar Hero. It was released on October 27, 2009 in North America and on October 30, 2009 in Europe. The game is based on turntablism and features more than 80 remixes of two different songs from a selection of over 100 different songs across numerous genres. To score points, the player must press buttons to activate accented beats, adjust their crossfade between the two songs, and "scratch" the turntable on the game's custom controller in time to marks that scroll on the screen to score points and perform well for the virtual crowd. The game features both a single player Career mode and cooperative and competitive multiplayer modes. The game also features a mode for selected songs for a DJ player to play alongside another player using a Guitar Hero guitar controller.
Many DJ and mix artists have contributed to the game both in the game's development, the creation of mixes, and in lending their images for playable avatars in the game; these including Eminem, Jay-Z, DJ Shadow, Z-Trip, DJ AM, Cut Chemist, J.Period, Grandmaster Flash, DJ Jazzy Jeff, and Daft Punk.