In another world, digital audio phenomena war against one another. It's one pilot against the Noise Armada in the battle for dominance of Blue Space.
You control a tank with 8-way movement and firing. The tank can fire sound waves in order to destroy enemies or activate objects. Each area is tuned to a given "tone cluster", and you must turn on oscillators to produce just the right tones in order to unlock gates. You are trying to create ordered tone signals, whereas the enemies try to create dissonance and even data corruption.
Out of the mad chaos of fractured signals and white noise, you must restore ordered tones and steady beats. Objects respond to tones and beats, enabling puzzles to be solved.