The player controls a circle that changes color with every screen tap or mouse click. Movement is done by dragging your finger or cursor across the field as the circle attracts to that point. Colored particles appear on the field and must be absorbed only when matching the circles current color. Absorbing a matching particle restores energy and awards points. Colliding with a particle of a different color drains energy and pushes the player back. The game ends when energy reaches zero. Control your circles color and collect only matching particles to survive as long as possible.