Amplitude, an early game from Guitar Hero, Rock Band, and Dance Central developers Harmonix, is officially making a comeback. Its basically like having five or six Guitar Hero or Rock Band tracks next to each other. The original Amplitude was released for the PlayStation 2 in 2003, and built on 2001 title Frequency. Like Guitar Hero, the game involves hitting musical notes scrolling down the screen in time, but its much more abstracted and focused around electronic music.