Amplitude (2003 video game)

Amplitude is a 2003 rhythm video game developed by Harmonix and published by Sony Computer Entertainment for the PlayStation 2. It is the sequel to Frequency (2001).

In Amplitude the player controls a beat blaster ship across a lane of six tracks, each track representing a musical instrument and containing note gems that the player shoots at in time with the music. The player earns points for accurate playing and increases their scoring multiplier by playing a series of flawless sequences; the player loses energy by missing too many notes and can end the song prematurely if they run out of energy. Compared to the original Frequency which used more electronica and trance music, Amplitude included additional pop rock songs in its soundtrack.

The game was met with a critical applause and a decent financial success, elevating Harmonix into a major studio in the development of music games. In 2014, Harmonix successfully offered a Kickstarter campaign to raise over $840,000 in funds to build a new Amplitude game for PlayStation 3 and 4 consoles; the reboot was released in January 2016 under license from Sony.