A large white bar fills the screen, with a color of the spectrum taking up a small part of the bar. Ambient sound with light piano-like tones scattered around plays in the background. As colors scroll in from the right of the screen, the player must match with the color on the bar at the exact moment they hit each other. Each time the player matches correctly, the bar shrinks and fills with another color. Once the bar turns very small, if the player matches correctly, an explosion of sound and color will fill the screen. The colors will all then converge back into a bar and everything begins again.