Amplitude
Amplitude is a music/rhythm game and the successor to Frequency from 2001. As with its predecessor, you play songs by hitting notes on multiple tracks, each representing an instrument in the song.
Story
In the year 2112, nanotechnologists from the Department of Applied Meta-Prionics and Limbic Tuning are developing organic machines that can be inserted into the human brain to access both the physical and metaphysical secrets within. Attempting to create synesthesia, a "gift" that one of the technologists has, Mari programs a new group of bots to enter her brain and unleash this enhanced visual/aural perception. This flood of images and sounds is overwhelming and unfortunately Mari's brain shuts down. You will use the AMPLITUDE Operating System to penetrate Mari's memories, senses and emotions. There you will blast away the protective scar that her brain has placed around these synesthetic senses and bring her back to life.